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Introduction

A repository to keep track of problem solving practice, containing solutions from platforms:

  • Codeforces   Codeforces
  • AtCoder   AtCoder

Contents

# Title Solution Tags Submitted
796 D - Play Train C++ (GCC 9.2.1) AtCoder *400 Oct/30/2021 18:09
795 C - Calendar Validator C++ (GCC 9.2.1) AtCoder *300 Oct/30/2021 17:48
794 B - Star or Not C++ (GCC 9.2.1) AtCoder *200 Oct/30/2021 17:36
793 A - Distinct Strings C++ (GCC 9.2.1) AtCoder *100 Oct/30/2021 17:32
792 D - Another Problem About Dividing Numbers GNU C++17 constructive algorithms math number theory *1700 Sep/27/2021 10:47
791 F - Distance Sums 2 C++ (GCC 9.2.1) AtCoder *500 Sep/26/2021 19:03
790 D - FG operation C++ (GCC 9.2.1) AtCoder *400 Sep/26/2021 18:34
789 C - Long Sequence C++ (GCC 9.2.1) AtCoder *300 Sep/26/2021 17:46
788 B - Base K C++ (GCC 9.2.1) AtCoder *200 Sep/26/2021 17:37
787 A - Find Multiple C++ (GCC 9.2.1) AtCoder *100 Sep/26/2021 17:32
786 D - Strange Lunchbox C++ (GCC 9.2.1) AtCoder *400 Sep/18/2021 18:07
785 C - Neo-lexicographic Ordering C++ (GCC 9.2.1) AtCoder *300 Sep/18/2021 17:50
784 B - Maritozzo C++ (GCC 9.2.1) AtCoder *200 Sep/18/2021 17:37
783 A - AtCoder Quiz 2 C++ (GCC 9.2.1) AtCoder *100 Sep/18/2021 17:34
782 E - Destruction C++ (GCC 9.2.1) AtCoder *500 Sep/11/2021 18:50
781 D - Rectangles C++ (GCC 9.2.1) AtCoder *400 Sep/11/2021 18:20
780 B - qwerty C++ (GCC 9.2.1) AtCoder *200 Sep/11/2021 17:40
779 A - Weather Forecast C++ (GCC 9.2.1) AtCoder *100 Sep/11/2021 17:37
778 D - Beautiful Graph GNU C++17 dfs and similar graphs *1700 Sep/11/2021 14:41
777 Q - Flowers C++ (GCC 9.2.1) AtCoder *100 Sep/07/2021 22:39
776 V - Subtree C++ (GCC 9.2.1) AtCoder *100 Sep/07/2021 20:48
775 U - Grouping C++ (GCC 9.2.1) AtCoder *100 Sep/07/2021 03:29
774 E - Sorting Queries C++ (GCC 9.2.1) AtCoder *500 Sep/04/2021 18:29
773 D - Cutting Woods C++ (GCC 9.2.1) AtCoder *400 Sep/04/2021 17:48
772 C - Inverse of Permutation C++ (GCC 9.2.1) AtCoder *300 Sep/04/2021 17:37
771 B - AtCoder Quiz C++ (GCC 9.2.1) AtCoder *200 Sep/04/2021 17:34
770 A - Lexicographic Order C++ (GCC 9.2.1) AtCoder *100 Sep/04/2021 17:31
769 S - Digit Sum C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 22:01
768 J - Sushi C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 19:41
767 N - Slimes C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 16:44
766 M - Candies C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 16:02
765 E - Knapsack 2 C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 13:33
764 R - Walk C++ (GCC 9.2.1) AtCoder *100 Sep/02/2021 02:57
763 P - Independent Set C++ (GCC 9.2.1) AtCoder *100 Sep/01/2021 21:47
762 O - Matching C++ (GCC 9.2.1) AtCoder *100 Sep/01/2021 18:31
761 L - Deque C++ (GCC 9.2.1) AtCoder *100 Aug/31/2021 20:12
760 K - Stones C++ (GCC 9.2.1) AtCoder *100 Aug/31/2021 18:24
759 G - Longest Path C++ (GCC 9.2.1) AtCoder *100 Aug/31/2021 11:57
758 E - Chain Contestant C++ (GCC 9.2.1) AtCoder *500 Aug/21/2021 18:36
757 D - Coprime 2 C++ (GCC 9.2.1) AtCoder *400 Aug/21/2021 18:05
756 C - One More aab aba baa C++ (GCC 9.2.1) AtCoder *300 Aug/21/2021 17:38
755 B - log2(N) C++ (GCC 9.2.1) AtCoder *200 Aug/21/2021 17:35
754 A - Your First Judge C++ (GCC 9.2.1) AtCoder *100 Aug/21/2021 17:31
753 E - Polycarp and String Transformation GNU C++17 binary search implementation sortings strings *1800 Aug/20/2021 18:11
752 D - Make a Power of Two GNU C++17 greedy math strings *1300 Aug/18/2021 21:05
751 C - Infinity Table GNU C++17 implementation math *800 Aug/18/2021 20:35
750 B - Who's Opposite? GNU C++17 math *800 Aug/18/2021 20:17
749 A - Dislike of Threes GNU C++17 implementation *800 Aug/18/2021 20:09
748 C - Unstable String GNU C++17 binary search dp greedy implementation strings two pointers *1400 Aug/09/2021 19:25
747 D - Takahashi Tour C++ (GCC 9.2.1) AtCoder *400 Aug/08/2021 18:15
746 C - Reorder Cards C++ (GCC 9.2.1) AtCoder *300 Aug/08/2021 17:54
745 B - Booby Prize C++ (GCC 9.2.1) AtCoder *200 Aug/08/2021 17:37
744 A - Bitwise Exclusive Or C++ (GCC 9.2.1) AtCoder *100 Aug/08/2021 17:33
743 D - Querying Multiset C++ (GCC 9.2.1) AtCoder *400 Jul/31/2021 18:14
742 C - Min Difference C++ (GCC 9.2.1) AtCoder *300 Jul/31/2021 18:04
741 B - Weak Password C++ (GCC 9.2.1) AtCoder *200 Jul/31/2021 17:48
740 A - Alloy C++ (GCC 9.2.1) AtCoder *100 Jul/31/2021 17:38
739 E - Air Conditioners GNU C++17 data structures dp implementation shortest paths sortings two pointers *1500 Jul/10/2021 22:09
738 D - Co-growing Sequence GNU C++17 bitmasks constructive algorithms greedy *1300 Jul/10/2021 21:41
737 C - Pair Programming GNU C++17 greedy two pointers *1100 Jul/10/2021 21:05
736 B - Alphabetical Strings GNU C++17 greedy implementation strings *800 Jul/10/2021 20:34
735 A - Shortest Path with Obstacle GNU C++17 implementation math *800 Jul/10/2021 20:16
734 D - Collision C++ (GCC 9.2.1) AtCoder *400 Jul/10/2021 18:09
733 C - Not Equal C++ (GCC 9.2.1) AtCoder *300 Jul/10/2021 17:53
732 B - Can you buy them all? C++ (GCC 9.2.1) AtCoder *200 Jul/10/2021 17:41
731 A - Counting C++ (GCC 9.2.1) AtCoder *100 Jul/10/2021 17:35
730 D - Kth Excluded C++ (GCC 9.2.1) AtCoder *400 Jun/13/2021 18:25
729 C - POW C++ (GCC 9.2.1) AtCoder *300 Jun/13/2021 17:53
728 B - Permutation Check C++ (GCC 9.2.1) AtCoder *200 Jun/13/2021 17:36
727 A - kcal C++ (GCC 9.2.1) AtCoder *100 Jun/13/2021 17:34
726 F - Interesting Function GNU C++17 binary search dp math number theory *1500 Jun/10/2021 21:05
725 C - Number of Pairs GNU C++17 binary search data structures math two pointers *1300 Jun/10/2021 20:54
724 B - Friends and Candies GNU C++17 greedy math *800 Jun/10/2021 20:33
723 A - Stone Game GNU C++17 brute force dp greedy *800 Jun/10/2021 20:20
722 C - Friends and Travel costs C++ (GCC 9.2.1) AtCoder *300 May/30/2021 17:50
721 B - AtCoder Condominium C++ (GCC 9.2.1) AtCoder *200 May/30/2021 17:38
720 A - Chinchirorin C++ (GCC 9.2.1) AtCoder *100 May/30/2021 17:34
719 D - Armchairs GNU C++17 dp flows graph matchings greedy *1800 May/16/2021 14:19
718 B - Permutation Sort GNU C++17 constructive algorithms greedy *900 May/16/2021 13:47
717 A - Potion-making GNU C++17 math number theory *800 May/16/2021 13:36
716 D - Game in Momotetsu World C++ (GCC 9.2.1) AtCoder *400 May/15/2021 20:28
715 C - Secret Number C++ (GCC 9.2.1) AtCoder *300 May/15/2021 18:29
714 B - Do you know the second highest mountain? C++ (GCC 9.2.1) AtCoder *200 May/15/2021 17:37
713 A - Tiny Arithmetic Sequence C++ (GCC 9.2.1) AtCoder *100 May/15/2021 17:34
712 B - Sign of Friendship C++ (GCC 9.2.1) AtCoder *200 May/01/2021 17:56
711 A - UFO Invasion C++ (GCC 9.2.1) AtCoder *100 May/01/2021 17:34
710 D - Maximum Sum of Products GNU C++17 brute force dp implementation math two pointers *1600 Apr/29/2021 23:21
709 B - The Cake Is a Lie GNU C++17 dp math *800 Apr/29/2021 20:18
708 A - Red and Blue Beans GNU C++17 math *800 Apr/29/2021 20:10
707 A - Boboniu Chats with Du GNU C++17 dp greedy sortings two pointers *1800 Apr/26/2021 21:04
706 B - Catching Cheaters GNU C++17 dp strings *1800 Apr/25/2021 20:47
705 D - RGB Coloring 2 C++ (GCC 9.2.1) AtCoder *400 Apr/24/2021 21:22
704 C - IPFL C++ (GCC 9.2.1) AtCoder *300 Apr/24/2021 17:49
703 B - Intersection C++ (GCC 9.2.1) AtCoder *200 Apr/24/2021 17:34
702 A - Square Inequality C++ (GCC 9.2.1) AtCoder *100 Apr/24/2021 17:31
701 D - A and B and Interesting Substrings GNU C++17 data structures dp two pointers *1800 Apr/24/2021 04:30
700 D - Christmas Trees GNU C++17 graphs greedy shortest paths *1800 Apr/24/2021 03:02
699 D - Explorer Space GNU C++17 dp graphs shortest paths *1800 Apr/23/2021 22:47
698 C - Fillomino 2 GNU C++17 constructive algorithms dfs and similar greedy implementation *1400 Apr/23/2021 21:24
697 B - Morning Jogging GNU C++17 constructive algorithms greedy sortings *1200 Apr/23/2021 20:42
696 A - Sum of 2050 GNU C++17 greedy math *800 Apr/23/2021 20:08
695 C - Baby Ehab Partitions Again GNU C++17 bitmasks constructive algorithms dp math *1700 Apr/23/2021 19:33
694 B - AGAGA XOOORRR GNU C++17 bitmasks brute force dp greedy *1500 Apr/21/2021 20:27
693 A - Tit for Tat GNU C++17 greedy *800 Apr/21/2021 19:09
692 C - Product 1 Modulo N GNU C++17 greedy number theory *1600 Apr/19/2021 20:14
691 B - AND 0, Sum Big GNU C++17 bitmasks combinatorics math *1200 Apr/19/2021 19:15
690 A - Perfectly Imperfect Array GNU C++17 math number theory *800 Apr/19/2021 19:10
689 C2 - Guessing the Greatest (hard version) GNU C++17 binary search interactive *1900 Apr/19/2021 18:49
688 C - The Sports Festival GNU C++17 dp greedy *1800 Apr/16/2021 21:21
687 B - TMT Document GNU C++17 greedy *1100 Apr/16/2021 20:54
686 A - Average Height GNU C++17 constructive algorithms *800 Apr/16/2021 20:09
685 B - Zuma GNU C++17 dp *1900 Apr/14/2021 14:33
684 D - Powerful array GNU C++17 data structures implementation math two pointers *2200 Apr/14/2021 03:51
683 B - Little Elephant and Array GNU C++17 constructive algorithms data structures *1800 Apr/14/2021 03:04
682 F - Education GNU C++17 brute force dp greedy implementation *1900 Apr/13/2021 02:18
681 D - Min Cost String GNU C++17 brute force constructive algorithms graphs greedy strings *1600 Apr/12/2021 21:25
680 C - Yet Another Card Deck GNU C++17 brute force data structures implementation trees *1100 Apr/12/2021 20:40
679 B - GCD Length GNU C++17 constructive algorithms math number theory *1100 Apr/12/2021 20:20
678 A - Review Site GNU C++17 greedy *800 Apr/12/2021 20:09
677 C - Add One GNU C++17 dp matrices *1600 Apr/12/2021 01:44
676 E - Permutation by Sum GNU C++17 brute force greedy math *1600 Apr/12/2021 01:28
675 B - AND Sequences GNU C++17 bitmasks combinatorics constructive algorithms math *1400 Apr/11/2021 20:55
674 A - Array and Peaks GNU C++17 constructive algorithms implementation *800 Apr/11/2021 20:12
673 G - Short Task GNU C++17 brute force dp math number theory *1700 Apr/11/2021 13:16
672 D - Corrupted Array GNU C++17 constructive algorithms data structures greedy *1200 Apr/10/2021 21:07
671 C - A-B Palindrome GNU C++17 constructive algorithms implementation strings *1200 Apr/10/2021 20:44
670 B - Almost Rectangle GNU C++17 implementation *800 Apr/10/2021 20:18
669 A - Spy Detected! GNU C++17 brute force implementation *800 Apr/10/2021 20:07
668 C - Pashmak and Buses GNU C++17 combinatorics constructive algorithms math *1900 Apr/07/2021 13:50
667 D - Dr. Evil Underscores GNU C++17 bitmasks brute force dfs and similar divide and conquer dp greedy strings trees *1900 Apr/07/2021 02:12
666 D - Rescue Nibel! GNU C++17 combinatorics data structures sortings *1800 Apr/06/2021 23:53
665 E - K-periodic Garland GNU C++17 brute force dp greedy *1900 Apr/06/2021 02:38
664 D - Vasya and Triangle GNU C++17 geometry number theory *1800 Apr/05/2021 21:18
663 D - Easy Problem GNU C++17 dp *1800 Apr/05/2021 12:32
662 A - Going Home GNU C++17 brute force hashing implementation math *1800 Apr/05/2021 02:49
661 F - Math GNU C++17 math Apr/04/2021 02:27
660 B - Flip the Bits GNU C++17 greedy implementation math math *1200 Apr/03/2021 20:35
659 A - Déjà Vu GNU C++17 constructive algorithms *800 Apr/03/2021 20:13
658 D - Paint the Tree GNU C++17 brute force constructive algorithms dp graphs implementation trees *1800 Apr/02/2021 22:42
657 E - Cakewalk GNU C++17 greedy implementation shortest paths Apr/01/2021 21:26
656 C - Fibonacci Words GNU C++17 implementation Apr/01/2021 20:46
655 B - DMCA GNU C++17 implementation number theory Apr/01/2021 20:34
654 A - Is it rated - 2 GNU C++17 implementation interactive Apr/01/2021 20:09
653 C - Painting Fence GNU C++17 divide and conquer dp greedy *1900 Mar/30/2021 22:10
652 C - Planar Reflections GNU C++17 brute force data structures dp *1600 Mar/30/2021 02:04
651 B - Box Fitting GNU C++17 binary search bitmasks data structures greedy *1300 Mar/29/2021 20:25
650 A - GCD Sum GNU C++17 brute force math *800 Mar/29/2021 20:11
649 D - Roads not only in Berland GNU C++17 dsu graphs trees *1900 Mar/29/2021 02:59
648 B - Tree Tag GNU C++17 dfs and similar dp games trees *1900 Mar/28/2021 19:05
647 D - Opposite C++ (GCC 9.2.1) AtCoder *400 Mar/27/2021 21:30
646 C - ORXOR C++ (GCC 9.2.1) AtCoder *300 Mar/27/2021 18:06
645 B - Visibility C++ (GCC 9.2.1) AtCoder *200 Mar/27/2021 17:39
644 A - Rotate C++ (GCC 9.2.1) AtCoder *100 Mar/27/2021 17:31
643 C - Beautiful Numbers GNU C++17 brute force combinatorics *1800 Mar/27/2021 14:56
642 B - Mike and Feet GNU C++17 binary search data structures dp dsu *1900 Mar/27/2021 13:46
641 C - The Football Season GNU C++17 brute force math number theory *2000 Mar/27/2021 03:16
640 B - Orac and Medians GNU C++17 constructive algorithms greedy math *2000 Mar/26/2021 13:02
639 E - Restoring the Permutation GNU C++17 constructive algorithms implementation *1500 Mar/25/2021 21:36
638 D - Epic Transformation GNU C++17 constructive algorithms data structures greedy *1400 Mar/25/2021 21:18
637 C - Double-ended Strings GNU C++17 brute force implementation strings *1000 Mar/25/2021 21:05
636 B - Partial Replacement GNU C++17 greedy implementation *1100 Mar/25/2021 20:48
635 A - Strange Table GNU C++17 math *800 Mar/25/2021 20:15
634 D - Vasiliy's Multiset GNU C++17 binary search bitmasks data structures trees *1800 Mar/24/2021 22:31
633 C - Ice Cave GNU C++17 dfs and similar *2000 Mar/24/2021 12:59
632 D - Multiset GNU C++17 binary search data structures *1900 Mar/23/2021 13:56
631 A - Enlarge GCD GNU C++17 number theory *1800 Mar/23/2021 12:40
630 D - Kefa and Dishes GNU C++17 bitmasks dp *1800 Mar/23/2021 11:44
629 D - Hanjo C++ (GCC 9.2.1) AtCoder *400 Mar/22/2021 22:16
628 C - Doubled C++ (GCC 9.2.1) AtCoder *300 Mar/20/2021 17:57
627 B - Round Down C++ (GCC 9.2.1) AtCoder *200 Mar/20/2021 17:36
626 A - Difference Max C++ (GCC 9.2.1) AtCoder *100 Mar/20/2021 17:33
625 C - Minimum Grid Path GNU C++17 brute force data structures greedy math *1500 Mar/18/2021 22:31
624 B - Binary Removals GNU C++17 brute force dp greedy implementation *1000 Mar/18/2021 20:49
623 A - Domino on Windowsill GNU C++17 combinatorics constructive algorithms math *800 Mar/18/2021 20:26
622 E1 - Square-free division (easy version) GNU C++17 data structures dp greedy math number theory two pointers *1700 Mar/17/2021 21:46
621 C2 - k-LCM (hard version) GNU C++17 constructive algorithms math *1600 Mar/17/2021 21:16
620 C1 - k-LCM (easy version) GNU C++17 constructive algorithms math *1200 Mar/17/2021 21:07
619 B - M-arrays GNU C++17 constructive algorithms greedy math *1200 Mar/17/2021 20:35
618 A - Meximization GNU C++17 brute force data structures greedy sortings *800 Mar/17/2021 20:10
617 A - Extreme Subtraction GNU C++17 constructive algorithms dp greedy *1800 Mar/16/2021 21:33
616 D - Same GCDs GNU C++17 math number theory *1800 Mar/15/2021 22:23
615 D - Shipping Center C++ (GCC 9.2.1) AtCoder *400 Mar/13/2021 19:06
614 C - Comma C++ (GCC 9.2.1) AtCoder *300 Mar/13/2021 18:32
613 B - Many Oranges C++ (GCC 9.2.1) AtCoder *200 Mar/13/2021 18:15
612 A - Health M Death C++ (GCC 9.2.1) AtCoder *100 Mar/13/2021 17:31
611 D - Minimum Euler Cycle GNU C++17 constructive algorithms graphs greedy implementation *1800 Mar/11/2021 22:47
610 C - Primitive Primes GNU C++17 constructive algorithms math ternary search *1800 Mar/10/2021 21:59
609 A - Writing Code GNU C++17 dp *1800 Mar/10/2021 13:07
608 B - Planet Lapituletti GNU C++17 brute force implementation *1300 Mar/06/2021 21:49
607 A - Anti-knapsack GNU C++17 constructive algorithms greedy *800 Mar/06/2021 19:46
606 B - Unmerge GNU C++17 dp *1800 Mar/04/2021 22:21
605 C - Sereja and Brackets GNU C++17 data structures schedules *2000 Feb/23/2021 21:58
604 C - Maximum width GNU C++17 data structures dp greedy Feb/23/2021 15:29
603 B - Card Deck GNU C++17 data structures greedy math Feb/23/2021 15:04
602 A - Three swimmers GNU C++17 math Feb/23/2021 14:48
601 E2 - Three Blocks Palindrome (hard version) GNU C++17 brute force data structures dp two pointers *1800 Feb/23/2021 13:27
600 B - The least round way GNU C++17 dp math *2000 Feb/22/2021 20:27
599 B - Nastya and Scoreboard GNU C++17 bitmasks dp graphs greedy *1700 Feb/22/2021 12:10
598 C - Arithmetic Progression GNU C++17 implementation sortings *1700 Feb/22/2021 04:15
597 D - Slime GNU C++17 dp greedy implementation *1800 Feb/22/2021 00:40
596 B - Edge Weight Assignment GNU C++17 bitmasks constructive algorithms dfs and similar greedy math trees *1800 Feb/21/2021 21:42
595 D - Dima and Lisa GNU C++17 brute force math number theory *1800 Feb/21/2021 18:04
594 E - Train C++ (GCC 9.2.1) AtCoder *500 Feb/20/2021 19:52
593 C - Kaprekar Number C++ (GCC 9.2.1) AtCoder *300 Feb/20/2021 18:00
592 B - uNrEaDaBlE sTrInG C++ (GCC 9.2.1) AtCoder *200 Feb/20/2021 17:52
591 A - Star C++ (GCC 9.2.1) AtCoder *100 Feb/20/2021 17:46
590 C - Engineer Artem GNU C++17 2-sat chinese remainder theorem constructive algorithms fft flows *2000 Feb/20/2021 03:34
589 D - Maximum Distributed Tree GNU C++17 dfs and similar dp greedy implementation math number theory sortings trees *1800 Feb/19/2021 22:09
588 C1 - Guessing the Greatest (easy version) GNU C++17 binary search interactive Feb/19/2021 02:39
587 B - Eastern Exhibition GNU C++17 binary search geometry shortest paths sortings Feb/18/2021 21:07
586 A - Shifting Stacks GNU C++17 greedy implementation Feb/18/2021 21:03
585 D - Three Integers GNU C++17 brute force math *2000 Feb/18/2021 18:33
584 G - Old Floppy Drive GNU C++17 binary search data structures math Feb/17/2021 03:02
583 E - Accidental Victory GNU C++17 binary search data structures greedy Feb/16/2021 21:41
582 F - Equalize the Array GNU C++17 binary search data structures greedy math sortings Feb/16/2021 21:17
581 D - Permutation Transformation GNU C++17 dfs and similar divide and conquer implementation Feb/16/2021 21:00
580 C - Sum of Cubes GNU C++17 binary search brute force brute force math Feb/16/2021 20:52
579 B - Balanced Remainders GNU C++17 brute force constructive algorithms math Feb/16/2021 20:44
578 A - Dense Array GNU C++17 greedy math Feb/16/2021 20:22
577 E - Cheap Dinner GNU C++17 data structures dp implementation sortings two pointers *2000 Feb/16/2021 18:26
576 C - Minimum Ties GNU C++17 brute force constructive algorithms dfs and similar graphs greedy implementation math *1500 Feb/15/2021 21:28
575 D - Pythagorean Triples GNU C++17 binary search brute force math number theory *1500 Feb/15/2021 21:01
574 B - Cat Cycle GNU C++17 math number theory *1200 Feb/15/2021 20:38
573 A - Arena GNU C++17 implementation sortings *800 Feb/15/2021 20:09
572 D - AB Graph GNU C++17 brute force constructive algorithms graphs greedy implementation *2000 Feb/15/2021 19:43
571 D - Multiples and Power Differences GNU C++17 constructive algorithms graphs math number theory *2200 Feb/15/2021 18:53
570 C - Fence Painting GNU C++17 brute force constructive algorithms greedy *1600 Feb/13/2021 20:26
569 B - New Colony GNU C++17 brute force greedy implementation *1100 Feb/13/2021 19:36
568 A - Space Navigation GNU C++17 greedy strings *800 Feb/13/2021 19:23
567 C - Floor and Mod GNU C++17 binary search brute force math number theory *1700 Feb/12/2021 21:47
566 B - Replace and Keep Sorted GNU C++17 dp implementation math *1200 Feb/12/2021 20:56
565 A - Add and Divide GNU C++17 brute force greedy math number theory *1000 Feb/12/2021 20:39
564 A - Rational Resistance GNU C++17 math number theory *1600 Feb/12/2021 14:05
563 C - Xenia and Weights GNU C++17 constructive algorithms dfs and similar dp graphs greedy shortest paths *1700 Feb/12/2021 13:28
562 C - Coffee Break GNU C++17 binary search data structures greedy two pointers *1600 Feb/10/2021 03:56
561 C - Chef Monocarp GNU C++17 dp flows graph matchings greedy math sortings *1800 Feb/09/2021 10:58
560 C - Searching Local Minimum GNU C++17 binary search interactive math ternary search *1700 Feb/07/2021 22:00
559 B - The Great Hero GNU C++17 greedy implementation sortings *900 Feb/07/2021 21:37
558 A - Yet Another String Game GNU C++17 games greedy strings *800 Feb/07/2021 20:16
557 E - Come Back Quickly C++ (GCC 9.2.1) AtCoder *500 Feb/06/2021 19:13
556 C - Digital Graffiti C++ (GCC 9.2.1) AtCoder *300 Feb/06/2021 18:25
555 B - Remove It C++ (GCC 9.2.1) AtCoder *200 Feb/06/2021 17:34
554 A - Vanishing Pitch C++ (GCC 9.2.1) AtCoder *100 Feb/06/2021 17:33
553 C - p-binary GNU C++17 bitmasks brute force math *1600 Feb/06/2021 17:09
552 D - Colorful Graph GNU C++17 brute force dfs and similar graphs *1600 Feb/04/2021 21:40
551 A - Alternative Thinking GNU C++17 dp greedy math *1600 Feb/04/2021 13:07
550 C - Party Lemonade GNU C++17 bitmasks dp greedy *1600 Feb/04/2021 03:10
549 B - Dima and a Bad XOR GNU C++17 bitmasks brute force constructive algorithms dp *1600 Feb/03/2021 13:17
548 D - Journey GNU C++17 dfs and similar dp dsu implementation *1700 Feb/03/2021 01:56
547 C - Longest Simple Cycle GNU C++17 dp graphs greedy *1600 Feb/01/2021 21:50
546 D - Staircase Sequences C++ (GCC 9.2.1) AtCoder *400 Jan/30/2021 19:54
545 C - Bowls and Dishes C++ (GCC 9.2.1) AtCoder *300 Jan/30/2021 18:49
544 B - Magic 3 C++ (GCC 9.2.1) AtCoder *200 Jan/30/2021 17:44
543 A - Very Very Primitive Game C++ (GCC 9.2.1) AtCoder *100 Jan/30/2021 17:37
542 B - Inflation GNU C++17 binary search brute force greedy math Jan/29/2021 21:03
541 A - K-divisible Sum GNU C++17 binary search constructive algorithms greedy math Jan/29/2021 20:15
540 C - Nezzar and Symmetric Array GNU C++17 implementation math sortings *1700 Jan/28/2021 21:58
539 B - Nezzar and Lucky Number GNU C++17 brute force dp greedy math *1100 Jan/28/2021 20:35
538 A - Nezzar and Colorful Balls GNU C++17 brute force greedy *800 Jan/28/2021 20:10
537 D - Cleaning the Phone GNU C++17 binary search dp sortings two pointers *1800 Jan/28/2021 02:51
536 E - Advertising Agency GNU C++17 combinatorics math sortings *1600 Jan/25/2021 21:29
535 C - Ball in Berland GNU C++17 combinatorics graphs math *1400 Jan/25/2021 20:54
534 B - New Year's Number GNU C++17 brute force dp math *900 Jan/25/2021 20:39
533 A - Odd Divisor GNU C++17 math number theory *900 Jan/25/2021 20:32
532 D - Zigzags GNU C++17 brute force combinatorics data structures math two pointers *1900 Jan/24/2021 20:15
531 D - Logical Expression C++ (GCC 9.2.1) AtCoder *400 Jan/23/2021 18:40
530 C - Mandarin Orange C++ (GCC 9.2.1) AtCoder *300 Jan/23/2021 17:48
529 B - Alcoholic C++ (GCC 9.2.1) AtCoder *200 Jan/23/2021 17:43
528 A - Slot C++ (GCC 9.2.1) AtCoder *100 Jan/23/2021 17:34
527 D - Circle Game GNU C++17 games geometry math *1700 Jan/23/2021 14:31
526 B - Stoned Game GNU C++17 brute force constructive algorithms games greedy *1800 Jan/23/2021 02:13
525 D - Minimal Height Tree GNU C++17 graphs greedy shortest paths trees *1600 Jan/21/2021 22:04
524 D - Distance in Tree GNU C++17 dfs and similar dp trees *1800 Jan/21/2021 13:51
523 C - Trailing Loves (or L'oeufs?) GNU C++17 brute force implementation math number theory *1700 Jan/21/2021 12:22
522 C - Ladder GNU C++17 dp implementation two pointers *1700 Jan/20/2021 21:40
521 D - Xenia and Bit Operations GNU C++17 data structures trees *1700 Jan/20/2021 18:48
520 C - Array Destruction GNU C++17 brute force constructive algorithms data structures greedy implementation sortings *1700 Jan/19/2021 23:22
519 B - Different Divisors GNU C++17 binary search constructive algorithms greedy math number theory *1000 Jan/19/2021 20:33
518 A - Puzzle From the Future GNU C++17 greedy *800 Jan/19/2021 20:20
517 D - Program GNU C++17 data structures dp implementation strings *1700 Jan/18/2021 02:56
516 C - No More Inversions GNU C++17 constructive algorithms math *1500 Jan/17/2021 21:19
515 B - String LCM GNU C++17 brute force math number theory strings *1000 Jan/17/2021 19:59
514 A - Replacing Elements GNU C++17 greedy implementation math sortings *800 Jan/17/2021 19:42
513 D - Sequence and Swaps GNU C++17 dp greedy sortings *1600 Jan/16/2021 19:58
512 A - Row GCD GNU C++17 math number theory *1600 Jan/16/2021 10:34
511 D - Divide and Summarize GNU C++17 binary search brute force data structures divide and conquer implementation sortings *1600 Jan/15/2021 04:08
510 F - The Treasure of The Segments GNU C++17 binary search data structures greedy *1800 Jan/15/2021 02:37
509 C - Building a Fence GNU C++17 dp greedy implementation two pointers *1600 Jan/15/2021 01:36
508 E - Apollo versus Pan GNU C++17 bitmasks brute force math *1800 Jan/13/2021 02:22
507 G - Moving to the Capital GNU C++17 dfs and similar dp graphs shortest paths *2100 Jan/12/2021 21:20
506 E - Peddler C++ (GCC 9.2.1) AtCoder *500 Jan/10/2021 20:48
505 D - Snuke Prime C++ (GCC 9.2.1) AtCoder *400 Jan/10/2021 18:20
504 C - ABC Tournament C++ (GCC 9.2.1) AtCoder *300 Jan/10/2021 17:50
503 B - Orthogonality C++ (GCC 9.2.1) AtCoder *200 Jan/10/2021 17:35
502 A - Three-Point Shot C++ (GCC 9.2.1) AtCoder *100 Jan/10/2021 17:33
501 E - Correct Placement GNU C++17 binary search data structures dp sortings two pointers *1700 Jan/10/2021 00:50
500 B - Hills And Valleys GNU C++17 brute force implementation *1700 Jan/09/2021 20:23
499 A - Wizard of Orz GNU C++17 constructive algorithms greedy math *900 Jan/08/2021 20:29
498 D - Strange Definition GNU C++17 bitmasks graphs hashing math number theory *1900 Jan/08/2021 19:04
497 F - Strange Housing GNU C++17 constructive algorithms dfs and similar graphs greedy *2200 Jan/08/2021 01:56
496 C - Strange Birthday Party GNU C++17 brute force greedy sortings *1300 Jan/06/2021 01:08
495 B - Strange List GNU C++17 brute force greedy implementation math *1100 Jan/05/2021 21:07
494 A - Strange Partition GNU C++17 greedy math number theory *900 Jan/05/2021 20:25
493 D - Even-Odd Game GNU C++17 dp games greedy sortings *1200 Jan/04/2021 20:59
492 C - Long Jumps GNU C++17 dp graphs *1100 Jan/04/2021 20:38
491 B - Fair Division GNU C++17 dp greedy math *800 Jan/04/2021 20:23
490 A - Cards for Friends GNU C++17 greedy math *800 Jan/04/2021 20:15
489 D - Choose Me C++ (GCC 9.2.1) AtCoder *400 Jan/02/2021 19:02
488 C - 1-SAT C++ (GCC 9.2.1) AtCoder *300 Jan/02/2021 17:49
487 B - Gentle Pairs C++ (GCC 9.2.1) AtCoder *200 Jan/02/2021 17:38
486 A - Large Digits C++ (GCC 9.2.1) AtCoder *100 Jan/02/2021 17:32
485 D - 13th Labour of Heracles GNU C++17 data structures greedy sortings trees *1500 Dec/30/2020 21:14
484 C - Canine poetry GNU C++17 dp greedy strings *1300 Dec/30/2020 20:40
483 B - Last minute enhancements GNU C++17 dp greedy *800 Dec/30/2020 20:32
482 A - Bovine Dilemma GNU C++17 brute force geometry math *800 Dec/30/2020 20:11
481 D - Ceil Divisions GNU C++17 brute force constructive algorithms math number theory *1700 Dec/28/2020 21:55
480 B - Red and Blue GNU C++17 dp greedy *1000 Dec/28/2020 20:42
479 A - Regular Bracket Sequence GNU C++17 constructive algorithms greedy *1000 Dec/28/2020 20:33
478 D - Pashmak and Parmida's problem GNU C++17 data structures divide and conquer sortings *1800 Dec/26/2020 02:17
477 C - Knight Tournament GNU C++17 data structures *1500 Dec/25/2020 20:46
476 E - Enemy is weak GNU C++17 data structures trees *1900 Dec/25/2020 01:50
475 C - Peaceful Rooks GNU C++17 dfs and similar dsu greedy implementation *1700 Dec/20/2020 22:05
474 B - Fair Numbers GNU C++17 brute force math number theory *1000 Dec/20/2020 20:45
473 A - In-game Chat GNU C++17 implementation strings *800 Dec/20/2020 20:37
472 I - Coins C++ (GCC 9.2.1) AtCoder *100 Dec/18/2020 20:10
471 B - Find The Array GNU C++17 bitmasks constructive algorithms greedy *1400 Dec/17/2020 21:11
470 A - Dungeon GNU C++17 binary search math *1100 Dec/17/2020 20:11
469 D - Good Substrings GNU C++17 data structures strings *1800 Dec/17/2020 19:08
468 C - Sagheer and Nubian Market GNU C++17 binary search sortings *1500 Dec/17/2020 18:04
467 C - Jeopardy! GNU C++17 greedy math *1400 Dec/16/2020 10:38
466 C - Everyone is a Winner! GNU C++17 binary search math meet-in-the-middle number theory *1400 Dec/16/2020 09:29
465 E2 - Close Tuples (hard version) GNU C++17 binary search combinatorics implementation math sortings two pointers *1700 Dec/15/2020 21:22
464 E1 - Close Tuples (easy version) GNU C++17 binary search combinatorics math sortings two pointers *1500 Dec/15/2020 21:04
463 D - Add to Neighbour and Remove GNU C++17 greedy math number theory *1400 Dec/15/2020 20:52
462 C - Unique Number GNU C++17 brute force greedy math *900 Dec/15/2020 20:33
461 B - Last Year's Substring GNU C++17 dp implementation strings *800 Dec/15/2020 20:13
460 A - Favorite Sequence GNU C++17 implementation two pointers *800 Dec/15/2020 20:08
459 B - Code For 1 GNU C++17 constructive algorithms dfs and similar divide and conquer *1600 Dec/15/2020 19:50
458 A - k-Multiple Free Set GNU C++17 binary search greedy sortings *1500 Dec/15/2020 17:05
457 A - Even But Not Even GNU C++17 greedy math strings *900 Dec/14/2020 19:29
456 B - Neko Performs Cat Furrier Transform GNU C++17 bitmasks constructive algorithms dfs and similar math *1300 Dec/14/2020 01:45
455 F - Range Xor Query C++ (GCC 9.2.1) AtCoder *600 Dec/13/2020 18:41
454 D - Stamp C++ (GCC 9.2.1) AtCoder *400 Dec/13/2020 18:25
453 C - Duodecim Ferra Python (3.8.2) AtCoder *300 Dec/13/2020 18:05
452 B - Smartphone Addiction C++ (GCC 9.2.1) AtCoder *200 Dec/13/2020 17:44
451 A - ABC Preparation C++ (GCC 9.2.1) AtCoder *100 Dec/13/2020 17:31
450 B - New Year and Old Property GNU C++17 bitmasks brute force implementation *1300 Dec/12/2020 21:33
449 C - Swap Letters GNU C++17 constructive algorithms greedy *1500 Dec/12/2020 19:49
448 C - Reducing Fractions GNU C++17 implementation math number theory sortings *1800 Dec/12/2020 12:35
447 C - Random Events GNU C++17 dp math probabilities *1500 Dec/11/2020 22:04
446 B - Find the Spruce GNU C++17 brute force dp implementation *1400 Dec/11/2020 21:26
445 A - String Generation GNU C++17 constructive algorithms greedy *800 Dec/11/2020 20:09
444 A - You Are Given Two Binary Strings... GNU C++17 bitmasks greedy *1100 Dec/11/2020 13:11
443 C - Powers Of Two GNU C++17 bitmasks greedy *1400 Dec/11/2020 01:10
442 C - Swap Adjacent Elements GNU C++17 dfs and similar greedy math sortings two pointers *1400 Dec/09/2020 01:13
441 C - Valhalla Siege GNU C++17 binary search *1400 Dec/09/2020 00:41
440 A - SwapSort GNU C++17 greedy implementation sortings *1200 Dec/07/2020 21:32
439 B - OR in Matrix GNU C++17 greedy hashing implementation *1300 Dec/07/2020 21:19
438 B - Minimize the Permutation GNU C++17 greedy *1400 Dec/07/2020 19:44
437 B - Balls of Steel GNU C++17 brute force geometry greedy *1000 Dec/06/2020 20:37
436 A - Avoid Trygub GNU C++17 constructive algorithms sortings *800 Dec/06/2020 20:08
435 B - Filling the Grid GNU C++17 implementation math *1400 Dec/06/2020 13:39
434 B - T-shirt buying GNU C++17 data structures implementation *1400 Dec/06/2020 12:47
433 C - Triangles GNU C++17 greedy implementation *1700 Dec/05/2020 21:28
432 B - Suffix Operations GNU C++17 constructive algorithms implementation *1400 Dec/04/2020 20:40
431 A - Cancel the Trains GNU C++17 implementation *800 Dec/04/2020 18:42
430 B - Catch Overflow! GNU C++17 data structures expression parsing implementation *1600 Dec/04/2020 17:35
429 C - Mortal Kombat Tower GNU C++17 dp graphs greedy shortest paths *1500 Dec/02/2020 04:01
428 A - Balanced Bitstring GNU C++17 implementation strings *1500 Dec/01/2020 19:13
427 B - Dubious Cyrpto GNU C++17 binary search brute force math number theory *1500 Dec/01/2020 18:15
426 C - Ping-pong GNU C++17 constructive algorithms games math *1100 Nov/30/2020 20:57
425 B - Jumps GNU C++17 constructive algorithms math *1200 Nov/30/2020 20:42
424 A - Strange Functions GNU C++17 math number theory *800 Nov/30/2020 20:11
423 C - Cyclic Permutations GNU C++17 combinatorics dp graphs math *1500 Nov/30/2020 19:44
422 A - NEKO's Maze Game GNU C++17 data structures dsu implementation *1400 Nov/30/2020 18:17
421 C - Bouncing Ball GNU C++17 dp implementation *1400 Nov/29/2020 14:20
420 B - Repainting Street GNU C++17 brute force greedy *1100 Nov/29/2020 13:35
419 A - Prison Break GNU C++17 brute force math *800 Nov/29/2020 12:41
418 D - Queue GNU C++17 greedy implementation sortings *1300 Nov/29/2020 01:47
417 B - Little Girl and Game GNU C++17 games greedy *1300 Nov/29/2020 01:36
416 B - Simple Game GNU C++17 constructive algorithms games greedy implementation math *1300 Nov/28/2020 21:13
415 B - Jzzhu and Sequences GNU C++17 implementation math *1300 Nov/28/2020 20:03
414 B - Queries about less or equal elements GNU C++17 binary search data structures sortings two pointers *1300 Nov/28/2020 19:51
413 A - Bear and Poker GNU C++17 implementation math number theory *1300 Nov/27/2020 22:06
412 B2 - Social Network (hard version) GNU C++17 data structures implementation *1300 Nov/27/2020 22:00
411 D - Number into Sequence GNU C++17 constructive algorithms math number theory *1300 Nov/24/2020 20:35
410 C - Sequence Transformation GNU C++17 greedy implementation *1200 Nov/24/2020 20:21
409 B - Unique Bid Auction GNU C++17 implementation *800 Nov/24/2020 20:10
408 A - Special Permutation GNU C++17 constructive algorithms probabilities *800 Nov/24/2020 20:06
407 D - increment of coins C++ (GCC 9.2.1) AtCoder *400 Nov/22/2020 19:53
406 C - Super Ryuma C++ (GCC 9.2.1) AtCoder *300 Nov/22/2020 18:12
405 B - Quizzes C++ (GCC 9.2.1) AtCoder *200 Nov/22/2020 17:33
404 A - Determinant C++ (GCC 9.2.1) AtCoder *100 Nov/22/2020 17:31
403 C - String Equality GNU C++17 dp greedy hashing implementation strings *1400 Nov/21/2020 22:08
402 B - Non-Substring Subsequence GNU C++17 dp greedy implementation strings *900 Nov/21/2020 20:33
401 A - Subtract or Divide GNU C++17 greedy math *800 Nov/21/2020 20:12
400 B - Toy Blocks GNU C++17 binary search greedy math sortings *1400 Nov/21/2020 19:56
399 C - Two Brackets GNU C++17 greedy *800 Nov/19/2020 20:32
398 A - Robot Program GNU C++17 math *800 Nov/19/2020 20:11
397 C1 - Binary Table (Easy Version) GNU C++17 constructive algorithms implementation *1500 Nov/17/2020 22:10
396 B - Sum of Medians GNU C++17 greedy math *900 Nov/17/2020 21:03
395 A - Buy the String GNU C++17 implementation math *800 Nov/17/2020 20:12
394 E - Queen on Grid C++ (GCC 9.2.1) AtCoder *500 Nov/15/2020 18:59
393 D - Water Heater C++ (GCC 9.2.1) AtCoder *400 Nov/15/2020 18:04
392 C - Travel C++ (GCC 9.2.1) AtCoder *300 Nov/15/2020 17:51
391 B - Billiards C++ (GCC 9.2.1) AtCoder *200 Nov/15/2020 17:38
390 A - ReLU C++ (GCC 9.2.1) AtCoder *100 Nov/15/2020 17:31
389 B - Valerii Against Everyone GNU C++17 constructive algorithms data structures greedy sortings *1000 Nov/13/2020 20:20
388 A - Specific Tastes of Andre GNU C++17 constructive algorithms implementation *800 Nov/13/2020 20:08
387 E - Akari C++ (GCC 9.2.1) AtCoder *500 Nov/08/2020 19:14
386 D - Wandering C++ (GCC 9.2.1) AtCoder *400 Nov/08/2020 18:23
385 C - To 3 C++ (GCC 9.2.1) AtCoder *300 Nov/08/2020 17:58
384 B - Almost GCD C++ (GCC 9.2.1) AtCoder *200 Nov/08/2020 17:42
383 A - twiblr C++ (GCC 9.2.1) AtCoder *100 Nov/08/2020 17:34
382 C - Division GNU C++17 math number theory *1500 Nov/03/2020 17:36
381 A - Dreamoon Likes Coloring GNU C++17 constructive algorithms greedy implementation math *1800 Nov/03/2020 16:54
380 C - The Delivery Dilemma GNU C++17 binary search greedy sortings *1400 Nov/02/2020 21:09
379 B - Saving the City GNU C++17 dp greedy math sortings *1300 Nov/02/2020 20:34
378 A - Kids Seating GNU C++17 constructive algorithms math *800 Nov/02/2020 20:15
377 C - Gargari and Bishops GNU C++17 greedy hashing implementation *1900 Nov/01/2020 21:57
376 B - Elimination GNU C++17 greedy math *900 Nov/01/2020 17:03
375 A - Array Rearrangment GNU C++17 greedy sortings *800 Nov/01/2020 16:42
374 E - By Elevator or Stairs? GNU C++17 dp shortest paths *1700 Nov/01/2020 16:21
373 C - Count Triangles GNU C++17 binary search implementation math two pointers *1800 Oct/31/2020 12:52
372 A - Marketing Scheme GNU C++17 brute force constructive algorithms greedy math *800 Oct/27/2020 20:16
371 D - Single-use Stones GNU C++17 binary search flows greedy two pointers *1900 Oct/27/2020 18:53
370 C - Link Cut Centroids GNU C++17 constructive algorithms dfs and similar graphs trees *1700 Oct/27/2020 03:04
369 C - Perform Easily GNU C++17 brute force data structures dp sortings two pointers *1900 Oct/26/2020 04:02
368 D - Shurikens GNU C++17 data structures greedy schedules *1700 Oct/26/2020 01:58
367 B - A New Technique GNU C++17 constructive algorithms implementation *1100 Oct/25/2020 17:12
366 A - Finding Sasuke GNU C++17 math *800 Oct/25/2020 16:40
365 C - Binary Search GNU C++17 binary search combinatorics *1500 Oct/24/2020 20:45
364 B - Prime Square GNU C++17 constructive algorithms math *900 Oct/24/2020 19:49
363 A - Reorder GNU C++17 math *800 Oct/24/2020 19:41
362 E - Two Platforms GNU C++17 binary search dp sortings two pointers *1800 Oct/24/2020 19:14
361 C - Garland GNU C++17 dp greedy sortings *1800 Oct/24/2020 18:30
360 D - Decrease the Sum of Digits GNU C++17 greedy math *1500 Oct/23/2020 21:13
359 C - Yet Another Array Restoration GNU C++17 brute force math number theory *1200 Oct/23/2020 20:51
358 B - Minimum Product GNU C++17 brute force greedy math *1100 Oct/23/2020 20:28
357 A - Yet Another Two Integers Problem GNU C++17 greedy math *800 Oct/23/2020 20:11
356 D - Make The Fence Great Again GNU C++17 dp *1800 Oct/23/2020 02:27
355 B - Universal Solution GNU C++17 greedy *1400 Oct/22/2020 19:03
354 D - String Deletion GNU C++17 binary search data structures greedy two pointers *1700 Oct/22/2020 02:12
353 C - Barcode GNU C++17 dp matrices *1700 Oct/21/2020 03:29
352 F - Zero Remainder Sum GNU C++17 dp *2100 Oct/21/2020 02:38
351 E - Two Round Dances GNU C++17 combinatorics math *1300 Oct/20/2020 22:18
350 D - Districts Connection GNU C++17 constructive algorithms dfs and similar *1200 Oct/20/2020 21:31
349 C - Dominant Piranha GNU C++17 constructive algorithms greedy *900 Oct/20/2020 20:44
348 B - Yet Another Bookshelf GNU C++17 greedy implementation *800 Oct/20/2020 20:34
347 A - Boring Apartments GNU C++17 implementation math *800 Oct/20/2020 20:13
346 C - Palindromifier GNU C++17 constructive algorithms strings *1400 Oct/18/2020 17:28
345 B - Putting Bricks in the Wall GNU C++17 constructive algorithms implementation *1100 Oct/18/2020 15:56
344 A - XORwice GNU C++17 bitmasks greedy math *800 Oct/18/2020 14:38
343 C - ABBB GNU C++17 brute force data structures greedy strings *1100 Oct/17/2020 19:09
342 B - Belted Rooms GNU C++17 graphs implementation *1200 Oct/17/2020 19:04
341 A - Box is Pull GNU C++17 math *800 Oct/17/2020 18:42
340 D - Mysterious Present GNU C++17 dp sortings *1700 Oct/17/2020 02:53
339 D - Harmonious Graph GNU C++17 constructive algorithms dfs and similar dsu graphs greedy sortings *1700 Oct/17/2020 01:47
338 D - Count the Arrays GNU C++17 combinatorics math *1700 Oct/13/2020 02:16
337 D - Replace by MEX GNU C++17 brute force constructive algorithms sortings *1900 Oct/12/2020 21:06
336 E - Dist Max C++ (GCC 9.2.1) AtCoder *500 Sep/13/2020 18:35
335 D - Redistribution C++ (GCC 9.2.1) AtCoder *400 Sep/13/2020 18:15
334 C - Ubiquity C++ (GCC 9.2.1) AtCoder *300 Sep/13/2020 17:41
333 B - Product Max C++ (GCC 9.2.1) AtCoder *200 Sep/13/2020 17:33
332 A - Not C++ (GCC 9.2.1) AtCoder *100 Sep/13/2020 17:31
331 C - Step C++ (GCC 9.2.1) AtCoder *300 Aug/22/2020 17:43
330 B - Multiple of 9 C++ (GCC 9.2.1) AtCoder *200 Aug/22/2020 17:39
329 A - Takoyaki C++ (GCC 9.2.1) AtCoder *100 Aug/22/2020 17:37
328 C - H and V C++ (GCC 9.2.1) AtCoder *300 Jul/05/2020 19:48
327 B - Judge Status Summary C++ (GCC 9.2.1) AtCoder *200 Jul/05/2020 17:41
326 A - Payment C++ (GCC 9.2.1) AtCoder *100 Jul/05/2020 17:35
325 C - Tsundoku C++ (GCC 9.2.1) AtCoder *300 Jun/27/2020 18:28
324 D - Sum of Divisors C++ (GCC 9.2.1) AtCoder *400 Jun/27/2020 18:09
323 B - Minor Change C++ (GCC 9.2.1) AtCoder *200 Jun/27/2020 17:33
322 A - Calc C++ (GCC 9.2.1) AtCoder *100 Jun/27/2020 17:30
321 E - Red Scarf C++ (GCC 9.2.1) AtCoder *500 Jun/21/2020 18:08
320 D - Replacing C++ (GCC 9.2.1) AtCoder *400 Jun/21/2020 17:48
319 C - One Quadrillion and One Dalmatians C++ (GCC 9.2.1) AtCoder *300 Jun/21/2020 17:40
318 B - Mix Juice C++ (GCC 9.2.1) AtCoder *200 Jun/21/2020 17:35
317 A - αlphabet C++ (GCC 9.2.1) AtCoder *100 Jun/21/2020 17:32
316 D - Not Divisible C++ (GCC 9.2.1) AtCoder *400 Jun/14/2020 19:32
315 C - Forbidden List C++ (GCC 9.2.1) AtCoder *300 Jun/14/2020 17:49
314 B - Crane and Turtle C++ (GCC 9.2.1) AtCoder *200 Jun/14/2020 17:39
313 A - Five Variables C++ (GCC 9.2.1) AtCoder *100 Jun/14/2020 17:32
312 B - Motarack's Birthday GNU C++14 binary search greedy ternary search *1500 Jun/10/2020 16:13
311 B - A and B GNU C++14 greedy math *1500 Jun/10/2020 15:45
310 C - Cow and Message GNU C++14 brute force dp math strings *1500 Jun/10/2020 13:13
309 C - Tile Painting GNU C++14 number theory *1500 Jun/10/2020 02:20
308 D - Binary String Minimizing GNU C++14 greedy *1500 Jun/09/2020 20:27
307 D - Secret Passwords GNU C++14 dfs and similar dsu graphs *1500 Jun/09/2020 19:33
306 C - Sweets Eating GNU C++14 dp greedy math sortings *1500 Jun/09/2020 17:38
305 C - Friends and Gifts GNU C++14 constructive algorithms data structures math *1500 Jun/09/2020 13:04
304 A - Fast Food Restaurant GNU C++14 brute force greedy implementation *900 Jun/08/2020 21:07
303 B - Count Subrectangles GNU C++14 binary search greedy implementation *1500 Jun/08/2020 19:32
302 D - Remove One Element GNU C++14 brute force dp *1500 Jun/08/2020 13:17
301 D - Solve The Maze GNU C++14 constructive algorithms dfs and similar dsu graphs greedy implementation shortest paths *1700 Jun/07/2020 23:50
300 C - Rotation Matching GNU C++14 constructive algorithms data structures greedy implementation *1400 Jun/07/2020 21:07
299 B - Trouble Sort GNU C++14 constructive algorithms implementation *1300 Jun/07/2020 20:23
298 A - Matrix Game GNU C++14 games greedy implementation *1100 Jun/07/2020 20:13
297 A - The Two Routes GNU C++14 graphs shortest paths *1600 Jun/07/2020 01:30
296 B - Color the Fence GNU C++14 data structures dp greedy implementation *1700 Jun/06/2020 19:47
295 C - George and Job GNU C++14 dp implementation *1700 Jun/06/2020 18:20
294 B - Password GNU C++14 binary search dp hashing string suffix structures strings *1700 Jun/06/2020 17:23
293 C - Mafia GNU C++14 implementation *1600 Jun/05/2020 20:17
292 A - Gerald's Hexagon GNU C++14 brute force geometry math *1600 Jun/05/2020 18:32
291 C - Johnny and Another Rating Drop GNU C++14 bitmasks greedy math *1400 Jun/04/2020 21:31
290 B - Johnny and His Hobbies GNU C++14 bitmasks brute force *1200 Jun/04/2020 20:57
289 A - Johnny and Ancient Computer GNU C++14 implementation *1000 Jun/04/2020 20:35
288 C - Python Indentation GNU C++14 dp *1800 Jun/04/2020 15:12
287 C - Ice Skating GNU C++14 dfs and similar dsu graphs *1200 Jun/02/2020 13:25
286 C - Andryusha and Colored Balloons GNU C++14 dfs and similar graphs greedy trees *1600 Jun/02/2020 12:34
285 B - Mahmoud and Ehab and the message GNU C++14 dsu greedy implementation *1200 Jun/01/2020 21:36
284 C - LCM Challenge GNU C++14 greedy number theory *1600 Jun/01/2020 19:17
283 C - Vasya and String GNU C++14 binary search dp strings two pointers *1500 Jun/01/2020 17:48
282 C - Table Decorations GNU C++14 greedy *1800 Jun/01/2020 13:49
281 C - Game On Leaves GNU C++14 games trees *1600 Jun/01/2020 01:55
280 B - Subsequence Hate GNU C++14 implementation strings *1400 May/31/2020 21:14
279 A - Odd Selection GNU C++14 brute force implementation math *1200 May/31/2020 20:51
278 D - Div Game C++ (GCC 9.2.1) AtCoder *400 May/31/2020 18:07
277 C - Multiplication 3 C++ (GCC 9.2.1) AtCoder *300 May/31/2020 17:50
276 B - Multiplication 2 C++ (GCC 9.2.1) AtCoder *200 May/31/2020 17:44
275 A - Multiplication 1 C++ (GCC 9.2.1) AtCoder *100 May/31/2020 17:31
274 B - Zero Array GNU C++14 greedy math *1500 May/31/2020 12:54
273 C - Little Girl and Maximum Sum GNU C++14 data structures greedy implementation sortings *1500 May/31/2020 03:21
272 C - k-Tree GNU C++14 dp implementation trees *1600 May/30/2020 21:51
271 D - Caesar's Legions GNU C++14 dp *1700 May/30/2020 10:55
270 D - Yet Another Yet Another Task GNU C++14 data structures dp implementation two pointers *2000 May/29/2020 15:41
269 C - Mixing Water GNU C++14 binary search math *1700 May/28/2020 22:08
268 B - New Theatre Square GNU C++14 brute force dp greedy implementation two pointers *1000 May/28/2020 20:32
267 A - Berland Poker GNU C++14 brute force greedy math *1000 May/28/2020 20:20
266 D - The Best Vacation GNU C++14 binary search brute force greedy implementation two pointers *1900 May/27/2020 00:30
265 C - Celex Update GNU C++14 math *1600 May/26/2020 21:06
264 B - Maria Breaks the Self-isolation GNU C++14 greedy sortings *1000 May/26/2020 20:29
263 A - Park Lighting GNU C++14 greedy math *800 May/26/2020 20:15
262 G - A/B Matrix GNU C++14 constructive algorithms greedy math *1900 May/25/2020 17:50
261 F - Spy-string GNU C++14 bitmasks brute force constructive algorithms dp hashing strings *1700 May/24/2020 21:34
260 E - Polygon GNU C++14 dp graphs implementation shortest paths *1300 May/24/2020 20:04
259 D - Buying Shovels GNU C++14 math number theory *1300 May/24/2020 19:50
258 C - Similar Pairs GNU C++14 constructive algorithms graph matchings greedy sortings *1100 May/24/2020 19:31
257 B - Honest Coach GNU C++14 greedy sortings *800 May/24/2020 19:18
256 A - Minimal Square GNU C++14 greedy math *800 May/24/2020 19:12
255 C - Yet Another Counting Problem GNU C++14 math number theory *1600 May/18/2020 14:04
254 C2 - Not So Simple Polygon Embedding GNU C++14 binary search brute force geometry math *2000 May/17/2020 21:59
253 C1 - Simple Polygon Embedding GNU C++14 binary search geometry math ternary search *1400 May/17/2020 15:38
252 B - Ternary String GNU C++14 binary search dp implementation two pointers *1200 May/17/2020 15:18
251 A - Alarm Clock GNU C++14 math *900 May/17/2020 15:05
250 D - Game With Array GNU C++14 constructive algorithms math *1400 May/16/2020 18:52
249 B - Young Explorers GNU C++14 dp greedy sortings *1200 May/16/2020 18:11
248 A - Sequence with Digits GNU C++14 brute force implementation math *1200 May/16/2020 17:23
247 A - Party GNU C++14 dfs and similar graphs trees *900 May/16/2020 13:18
246 A - Bear and Friendship Condition GNU C++14 dfs and similar dsu graphs *1500 May/16/2020 12:10
245 B - Fox And Two Dots GNU C++14 dfs and similar *1500 May/16/2020 05:04
244 C - Dijkstra? GNU C++14 graphs shortest paths *1900 May/16/2020 04:13
243 E - Cyclic Components GNU C++14 dfs and similar dsu graphs *1500 May/15/2020 21:45
242 D - Valid BFS? GNU C++14 dfs and similar graphs shortest paths trees *1700 May/15/2020 21:28
241 A - DZY Loves Chessboard GNU C++14 dfs and similar implementation *1200 May/15/2020 19:03
240 C - Maze GNU C++14 dfs and similar *1600 May/15/2020 18:47
239 A - Winner GNU C++14 hashing implementation *1500 May/15/2020 17:51
238 B - Kefa and Company GNU C++14 binary search sortings two pointers *1500 May/15/2020 13:27
237 D - Constructing the Array GNU C++14 constructive algorithms data structures sortings *1600 May/14/2020 21:48
236 C - Board Moves GNU C++14 math *1000 May/14/2020 20:40
235 B - Two Arrays And Swaps GNU C++14 greedy sortings *800 May/14/2020 20:25
234 A - Most Unstable Array GNU C++14 constructive algorithms greedy math *800 May/14/2020 20:17
233 D - Knapsack 1 C++ (GCC 9.2.1) AtCoder *100 May/14/2020 02:39
232 C - Skier GNU C++14 data structures implementation *1400 May/13/2020 02:24
231 C - Orac and LCM GNU C++14 math number theory *1600 May/13/2020 01:43
230 B - Orac and Models GNU C++14 dp math number theory *1400 May/12/2020 19:01
229 A - Orac and Factors GNU C++14 math *900 May/12/2020 18:21
228 B - Spreadsheet GNU C++14 implementation math *1600 May/12/2020 04:07
227 B - Amr and Pins GNU C++14 geometry math *1400 May/12/2020 01:39
226 C - Drazil and Factorial GNU C++14 greedy math sortings *1400 May/12/2020 01:17
225 C - Exams GNU C++11 greedy sortings *1400 May/12/2020 00:48
224 B - Books GNU C++11 binary search brute force implementation two pointers *1400 May/11/2020 21:22
223 G - Special Permutation GNU C++11 constructive algorithms *1600 May/10/2020 04:22
222 F - Binary String Reconstruction GNU C++11 constructive algorithms dfs and similar math *1500 May/10/2020 03:00
221 E - Special Elements GNU C++11 brute force implementation two pointers *1500 May/10/2020 02:06
220 D - Alice, Bob and Candies GNU C++11 implementation *1300 May/09/2020 21:33
219 C - K-th Not Divisible by n GNU C++11 binary search math *1200 May/09/2020 20:57
218 B - Same Parity Summands GNU C++11 constructive algorithms math *1200 May/09/2020 20:27
217 A - Sum of Round Numbers GNU C++11 implementation math *800 May/09/2020 20:11
216 C - Hilbert's Hotel GNU C++14 math sortings *1600 May/06/2020 21:36
215 B - Card Constructions GNU C++14 binary search brute force dp math *1100 May/06/2020 20:49
214 A - Puzzle Pieces GNU C++14 math *800 May/06/2020 20:16
213 C - Phoenix and Distribution GNU C++11 constructive algorithms greedy sortings strings *1600 May/06/2020 19:50
212 E - This Message Will Self-Destruct in 5s C++ (GCC 9.2.1) AtCoder *500 May/03/2020 18:31
211 D - I hate Factorization C++ (GCC 9.2.1) AtCoder *400 May/03/2020 18:09
210 C - Peaks C++ (GCC 9.2.1) AtCoder *300 May/03/2020 17:50
209 B - Trick or Treat C++ (GCC 9.2.1) AtCoder *200 May/03/2020 17:36
208 A - A?C C++ (GCC 9.2.1) AtCoder *100 May/03/2020 17:31
207 B - Phoenix and Beauty GNU C++11 constructive algorithms data structures greedy sortings *1400 May/01/2020 22:15
206 A - Phoenix and Balance GNU C++11 greedy math *800 May/01/2020 20:25
205 B - New Skateboard GNU C++11 dp *1300 Apr/28/2020 20:51
204 B - Homecoming GNU C++11 binary search dp greedy strings *1300 Apr/28/2020 19:55
203 F - Consecutive Subsequence GNU C++11 dp *1700 Apr/28/2020 16:36
202 C - DZY Loves Sequences GNU C++11 dp *1600 Apr/28/2020 16:12
201 C - Nastya and Strange Generator GNU C++11 greedy implementation *1500 Apr/27/2020 04:39
200 B - Binary Period GNU C++11 constructive algorithms strings *1100 Apr/26/2020 20:34
199 A - Road To Zero GNU C++11 greedy math *1000 Apr/26/2020 20:14
198 C - gacha C++ (GCC 9.2.1) AtCoder *300 Apr/26/2020 17:57
197 B - Battle C++ (GCC 9.2.1) AtCoder *200 Apr/26/2020 17:53
196 A - Sheep and Wolves C++ (GCC 9.2.1) AtCoder *100 Apr/26/2020 17:32
195 C - Perfect Keyboard GNU C++11 dfs and similar greedy implementation *1600 Apr/24/2020 20:12
194 C - Product of Three Numbers GNU C++17 greedy math number theory *1300 Apr/24/2020 12:08
193 B - Nastya and Door GNU C++17 greedy implementation *1300 Apr/23/2020 21:51
192 A - Nastya and Rice GNU C++17 math *900 Apr/23/2020 20:34
191 B - Two Buttons GNU C++17 dfs and similar graphs greedy implementation math shortest paths *1400 Apr/23/2020 19:01
190 D - Constant Palindrome Sum GNU C++17 brute force data structures greedy two pointers *1700 Apr/23/2020 18:28
189 C - Alternating Subsequence GNU C++17 dp greedy two pointers *1200 Apr/21/2020 21:33
188 B - Balanced Array GNU C++17 constructive algorithms math *800 Apr/21/2020 20:40
187 A - Candies GNU C++17 brute force math *900 Apr/21/2020 20:28
186 E - Active Infants C++ (GCC 9.2.1) AtCoder *500 Apr/20/2020 01:28
185 D - Sum of Large Numbers C++ (GCC 9.2.1) AtCoder *400 Apr/19/2020 18:52
184 C - management C++ (GCC 9.2.1) AtCoder *300 Apr/19/2020 17:56
183 B - Homework C++ (GCC 9.2.1) AtCoder *200 Apr/19/2020 17:42
182 A - Circle Pond C++ (GCC 9.2.1) AtCoder *100 Apr/19/2020 17:38
181 C - Kefa and Park GNU C++17 dfs and similar graphs trees *1500 Apr/18/2020 22:55
180 C - PolandBall and Forest GNU C++17 dfs and similar dsu graphs interactive trees *1300 Apr/18/2020 20:07
179 C - Linova and Kingdom GNU C++17 dfs and similar dp greedy sortings trees *1600 Apr/16/2020 03:11
178 B - Kana and Dragon Quest game GNU C++17 greedy implementation math *900 Apr/15/2020 20:31
177 A - Ichihime and Triangle GNU C++17 constructive algorithms math *800 Apr/15/2020 20:21
176 B - Sorted Adjacent Differences GNU C++17 constructive algorithms sortings *1200 Apr/15/2020 19:52
175 C - Eugene and an array GNU C++17 binary search data structures implementation two pointers *1700 Apr/14/2020 18:18
174 D - Anti-Sudoku GNU C++17 constructive algorithms implementation *1300 Apr/13/2020 21:21
173 C - Two Teams Composing GNU C++17 binary search greedy implementation sortings *1100 Apr/13/2020 20:35
172 B - Construct the String GNU C++17 constructive algorithms *900 Apr/13/2020 20:16
171 A - Candies and Two Sisters GNU C++17 math *800 Apr/13/2020 20:09
170 C - Powered Addition GNU C++17 bitmasks brute force greedy *1500 Apr/13/2020 19:13
169 A - Filling Diamonds GNU C++17 brute force dp implementation math *900 Apr/12/2020 19:55
168 D - RGB Triplets C++ (GCC 9.2.1) AtCoder *400 Apr/12/2020 18:08
167 C - Sum of gcd of Tuples (Easy) C++ (GCC 9.2.1) AtCoder *300 Apr/12/2020 17:44
166 B - FizzBuzz Sum C++ (GCC 9.2.1) AtCoder *200 Apr/12/2020 17:40
165 A - Lucky 7 C++ (GCC 9.2.1) AtCoder *100 Apr/12/2020 17:39
164 C - Circle of Monsters GNU C++17 brute force constructive algorithms greedy math *1600 Apr/10/2020 21:33
163 B - Middle Class GNU C++17 greedy sortings *1100 Apr/10/2020 20:47
162 A - Level Statistics GNU C++17 implementation math *1200 Apr/10/2020 20:35
161 B - Kind Anton GNU C++17 greedy implementation *1100 Apr/08/2020 20:54
160 A - Little Artem GNU C++14 constructive algorithms *1000 Apr/08/2020 20:34
159 A - Journey Planning GNU C++17 data structures dp greedy math sortings *1400 Apr/07/2020 19:31
158 C - Remove Adjacent GNU C++17 brute force constructive algorithms greedy strings *1600 Apr/07/2020 18:55
157 C - Replacing Integer C++14 (GCC 5.4.1) AtCoder *300 Apr/04/2020 17:50
156 B - Popular Vote C++14 (GCC 5.4.1) AtCoder *200 Apr/04/2020 17:40
155 A - ABC Swap C++14 (GCC 5.4.1) AtCoder *100 Apr/04/2020 17:33
154 A - Grade Allocation GNU C++17 implementation *800 Apr/04/2020 03:35
153 B - Dreamoon Likes Permutations GNU C++17 implementation math *1400 Apr/03/2020 21:18
152 A - Dreamoon and Ranking Collection GNU C++17 implementation *900 Apr/03/2020 20:23
151 D - Ehab the Xorcist GNU C++17 bitmasks constructive algorithms greedy number theory *1700 Apr/03/2020 03:39
150 B - Limericks GNU C++17 math number theory Apr/02/2020 03:06
149 C - K-Complete Word GNU C++17 dfs and similar dsu greedy implementation strings *1500 Apr/02/2020 02:59
148 D - Again? GNU C++17 implementation Apr/02/2020 02:19
147 A - Is it rated? GNU C++17 Apr/02/2020 01:43
146 B - Composite Coloring GNU C++17 brute force constructive algorithms greedy math number theory *1400 Mar/31/2020 21:07
145 A - Exercising Walk GNU C++17 greedy implementation math *1100 Mar/31/2020 19:52
144 C - Unusual Competitions GNU C++17 constructive algorithms *1300 Mar/30/2020 03:21
143 C - Traveling Salesman around Lake C++14 (GCC 5.4.1) AtCoder *300 Mar/28/2020 18:41
142 B - Golden Coins C++14 (GCC 5.4.1) AtCoder *200 Mar/28/2020 17:40
141 A - Coffee C++14 (GCC 5.4.1) AtCoder *100 Mar/28/2020 17:35
140 C - Ternary XOR GNU C++17 greedy implementation *1200 Mar/26/2020 21:37
139 B - K-th Beautiful String GNU C++17 binary search brute force combinatorics implementation math *1300 Mar/26/2020 21:11
138 A - Divisibility Problem GNU C++17 math *800 Mar/26/2020 20:08
137 A - Even Subset Sum Problem GNU C++17 brute force dp greedy implementation *800 Mar/26/2020 18:38
136 C - Game with Chips GNU C++17 constructive algorithms implementation *1600 Mar/23/2020 21:49
135 B - Princesses and Princes GNU C++17 brute force graphs greedy *1200 Mar/23/2020 21:32
134 A - Sum of Odd Integers GNU C++17 math *1100 Mar/23/2020 20:19
133 D2 - Prefix-Suffix Palindrome (Hard version) GNU C++17 binary search greedy hashing string suffix structures strings *1800 Mar/19/2020 22:12
132 D1 - Prefix-Suffix Palindrome (Easy version) GNU C++17 hashing string suffix structures strings *1500 Mar/19/2020 22:11
131 C - Permutation Partitions GNU C++17 combinatorics greedy math *1300 Mar/19/2020 21:50
130 B - Maximums GNU C++17 implementation math *900 Mar/19/2020 20:57
129 A - Bad Ugly Numbers GNU C++17 constructive algorithms number theory *1000 Mar/19/2020 20:32
128 C - Shaass and Lights GNU C++17 combinatorics number theory *1900 Mar/18/2020 02:35
127 C - Ehab and Path-etic MEXs GNU C++17 constructive algorithms dfs and similar greedy trees *1500 Mar/14/2020 20:49
126 B - CopyCopyCopyCopyCopy GNU C++17 greedy implementation *800 Mar/14/2020 20:10
125 A - EhAb AnD gCd GNU C++17 constructive algorithms greedy number theory *800 Mar/14/2020 20:08
124 D - Pair of Topics GNU C++17 binary search data structures sortings two pointers *1400 Mar/12/2020 21:08
123 C - Frog Jumps GNU C++17 binary search data structures dfs and similar greedy implementation *1100 Mar/12/2020 19:07
122 B - Yet Another Palindrome Problem GNU C++17 brute force strings *1100 Mar/12/2020 18:50
121 A - Yet Another Tetris Problem GNU C++17 implementation number theory *900 Mar/12/2020 18:45
120 C - Candies! GNU C++17 data structures dp implementation math *1400 Mar/11/2020 12:23
119 C - Another Problem on Strings GNU C++17 binary search brute force dp math strings two pointers *1600 Mar/10/2020 03:17
118 B - Vitamins GNU C++17 bitmasks brute force dp implementation *1200 Mar/10/2020 02:33
117 C - Adding Powers GNU C++17 bitmasks greedy implementation math number theory ternary search *1400 Mar/09/2020 21:22
116 H - Grid 1 C++14 (GCC 5.4.1) AtCoder *100 Dec/05/2019 02:49
115 F - LCS C++14 (GCC 5.4.1) AtCoder *100 Dec/05/2019 02:10
114 C - Vacation C++14 (GCC 5.4.1) AtCoder *100 Dec/04/2019 04:35
113 B - Frog 2 C++14 (GCC 5.4.1) AtCoder *100 Dec/04/2019 04:17
112 A - Frog 1 C++14 (GCC 5.4.1) AtCoder *100 Dec/04/2019 04:09
111 B - Make Product Equal One GNU C++17 dp implementation *900 Aug/29/2019 23:38
110 B - Equation GNU C++17 math *2000 Aug/29/2019 20:17
109 B - Dreamoon and WiFi GNU C++17 bitmasks brute force combinatorics dp math probabilities *1300 Aug/29/2019 19:33
108 A - QAQ GNU C++17 brute force dp *800 Aug/29/2019 19:00
107 C - Number of Ways GNU C++17 binary search brute force data structures dp two pointers *1700 Aug/29/2019 03:07
106 A - Alex and a Rhombus GNU C++17 dp implementation math *800 Aug/29/2019 03:02
105 A - Filling Shapes GNU C++17 dp math *1000 Aug/28/2019 23:45
104 B - Perfect Number GNU C++17 binary search brute force dp implementation number theory *1100 Aug/28/2019 23:24
103 C - Magic Grid GNU C++17 constructive algorithms *1800 Aug/27/2019 19:52
102 A - Raising Bacteria GNU C++17 bitmasks *1000 Aug/27/2019 18:59
101 B - BerSU Ball GNU C++17 dfs and similar dp graph matchings greedy sortings two pointers *1200 Aug/27/2019 18:52
100 B - Queue at the School GNU C++17 constructive algorithms graph matchings implementation shortest paths *800 Aug/27/2019 17:58
99 B - Cormen --- The Best Friend Of a Man GNU C++17 dp greedy *1000 Aug/24/2019 20:10
98 A - Maximum Increase GNU C++17 dp greedy implementation *800 Aug/24/2019 19:30
97 A - Joysticks GNU C++17 dp greedy implementation math *1100 Aug/24/2019 19:13
96 C - Divisibility by Eight GNU C++17 brute force dp math *1500 Aug/24/2019 17:29
95 A - Two Substrings GNU C++17 brute force dp greedy implementation strings *1500 Aug/24/2019 16:45
94 A - Hit the Lottery GNU C++17 dp greedy *800 Aug/24/2019 15:28
93 B - Interesting drink GNU C++17 binary search dp implementation *1100 Aug/24/2019 14:58
92 C - Given Length and Sum of Digits... GNU C++17 dp greedy implementation *1400 Aug/24/2019 13:44
91 B - Ilya and Queries GNU C++17 dp implementation *1100 Aug/24/2019 02:15
90 A - Flipping Game GNU C++17 brute force dp implementation *1200 Aug/23/2019 22:57
89 A - Cut Ribbon GNU C++17 brute force dp *1300 Aug/23/2019 20:19
88 A - Boredom GNU C++17 dp *1500 Aug/23/2019 19:30
87 A - Again Twenty Five! GNU C++17 number theory *800 Aug/23/2019 12:01
86 B - Worms GNU C++17 binary search implementation *1200 Aug/23/2019 11:47
85 B - Lecture GNU C++17 implementation strings *1000 Aug/23/2019 01:03
84 B - Luxurious Houses GNU C++17 implementation math *1100 Aug/23/2019 00:34
83 A - Rewards GNU C++17 implementation *800 Aug/22/2019 23:59
82 A - Little Elephant and Bits GNU C++17 greedy math *1100 Aug/21/2019 20:48
81 A - Chewbaсca and Number GNU C++17 greedy implementation *1200 Aug/21/2019 20:27
80 B - Fence GNU C++17 brute force dp *1100 Aug/21/2019 20:13
79 A - Elections GNU C++17 implementation *1100 Aug/21/2019 03:03
78 B - Mislove Has Lost an Array GNU C++17 greedy math *900 Aug/20/2019 21:08
77 A - BowWow and the Timetable GNU C++17 math *1000 Aug/20/2019 20:49
76 C - Less or Equal GNU C++17 sortings *1200 Aug/20/2019 12:41
75 B - Caisa and Pylons GNU C++17 brute force implementation math *1100 Aug/20/2019 11:26
74 A - Cinema Line GNU C++17 greedy implementation *1100 Aug/20/2019 04:13
73 A - Free Cash GNU C++17 implementation *1000 Aug/19/2019 20:44
72 A - Laptops GNU C++17 sortings *1100 Aug/19/2019 20:37
71 A - Initial Bet GNU C++17 implementation *1100 Aug/19/2019 15:53
70 B - Parade GNU C++17 math *1100 Aug/19/2019 15:34
69 A - Infinite Sequence GNU C++17 math *1100 Aug/19/2019 14:22
68 A - Love "A" GNU C++17 implementation strings *800 Aug/19/2019 13:38
67 A - Devu, the Singer and Churu, the Joker GNU C++17 greedy implementation *900 Aug/19/2019 00:49
66 A - Towers GNU C++17 sortings *1000 Aug/18/2019 13:15
65 A - Football GNU C++17 strings *1000 Aug/18/2019 13:02
64 B - Present from Lena GNU C++17 constructive algorithms implementation *1000 Aug/18/2019 12:40
63 A - Drazil and Date GNU C++17 math *1000 Aug/18/2019 11:54
62 A - A and B and Chess GNU C++17 implementation *900 Aug/18/2019 11:36
61 A - Business trip GNU C++17 greedy implementation sortings *900 Aug/18/2019 11:18
60 A - Bachgold Problem GNU C++17 greedy implementation math number theory *800 Aug/17/2019 19:17
59 B - Buttons GNU C++17 implementation math *1000 Aug/17/2019 15:54
58 A - Keyboard GNU C++17 implementation *900 Aug/17/2019 14:45
57 A - Patrick and Shopping GNU C++17 implementation *800 Aug/17/2019 12:00
56 B - A and B and Compilation Errors GNU C++17 data structures implementation sortings *1100 Aug/17/2019 11:44
55 A - Case of the Zeros and Ones GNU C++17 greedy *900 Aug/17/2019 03:35
54 A - Bus to Udayland GNU C++17 brute force implementation *800 Aug/16/2019 20:21
53 A - Team Olympiad GNU C++17 greedy implementation sortings *800 Aug/16/2019 19:08
52 A - Buy a Shovel GNU C++17 brute force constructive algorithms implementation math *800 Aug/16/2019 02:14
51 A - Dragons GNU C++17 greedy sortings *1000 Aug/15/2019 22:47
50 A - Dreamoon and Stairs GNU C++17 implementation math *1000 Aug/13/2019 20:32
49 B - T-primes GNU C++17 binary search implementation math number theory *1300 Aug/13/2019 19:52
48 A - The New Year: Meeting Friends GNU C++17 implementation math sortings *800 Jul/21/2019 12:12
47 A - In Search of an Easy Problem GNU C++17 implementation *800 Jul/21/2019 11:40
46 A - Vasya and Socks GNU C++17 brute force implementation math *900 Jul/19/2019 23:17
45 B - Xenia and Ringroad GNU C++17 implementation *1000 Jul/18/2019 22:58
44 A - Design Tutorial: Learn from Math GNU C++17 math number theory *800 Mar/29/2019 22:48
43 A - Fox And Snake GNU C++17 implementation *800 Mar/29/2019 04:03
42 A - Amusing Joke GNU C++17 implementation sortings strings *800 Mar/29/2019 03:49
41 B - Drinks GNU C++17 implementation math *800 Mar/29/2019 03:36
40 A - Is your horseshoe on the other hoof? GNU C++17 implementation *800 Mar/28/2019 01:52
39 A - Hulk GNU C++17 implementation *800 Mar/27/2019 01:40
38 A - Bear and Big Brother GNU C++17 implementation *800 Mar/27/2019 01:32
37 A - Ultra-Fast Mathematician GNU C++17 implementation *800 Mar/27/2019 01:05
36 A - Vanya and Fence GNU C++17 implementation *800 Mar/27/2019 00:46
35 A - Anton and Danik GNU C++17 implementation strings *800 Mar/26/2019 00:50
34 A - Word GNU C++17 implementation strings *800 Mar/26/2019 00:42
33 A - Next Round GNU C++17 *special problem implementation *800 Mar/26/2019 00:09
32 A - Magnets GNU C++17 implementation *800 Mar/24/2019 02:07
31 A - Dubstep GNU C++17 strings *900 Mar/24/2019 00:56
30 A - Tram GNU C++17 implementation *800 Mar/24/2019 00:10
29 A - Petya and Strings GNU C++17 implementation strings *800 Mar/22/2019 01:33
28 A - Domino piling GNU C++17 greedy math *800 Mar/22/2019 01:02
27 A - Even Odds GNU C++17 math *900 Mar/14/2019 00:23
26 A - Calculating Function GNU C++17 implementation math *800 Mar/14/2019 00:11
25 A - Presents GNU C++17 implementation *800 Mar/14/2019 00:01
24 A - Elephant GNU C++17 math *800 Mar/13/2019 23:45
23 A - Thor GNU C++17 brute force data structures implementation *1600 Feb/01/2019 01:44
22 D - Lunar New Year and a Wander GNU C++17 data structures dfs and similar graphs greedy shortest paths *1500 Jan/31/2019 20:01
21 A - Lunar New Year and Cross Counting GNU C++17 implementation *800 Jan/31/2019 18:19
20 C - Registration System GNU C++17 data structures hashing implementation *1300 Jan/29/2019 18:52
19 A - Second Order Statistics GNU C++17 brute force *800 Jan/28/2019 15:24
18 A - Andryusha and Socks GNU C++17 implementation *800 Jan/28/2019 00:45
17 A - Kefa and First Steps GNU C++14 brute force dp implementation *900 Oct/02/2018 12:26
16 A - Beautiful Year GNU C++14 brute force *800 Sep/29/2018 21:07
15 A - Nearly Lucky Number GNU C++14 implementation *800 Sep/29/2018 20:28
14 A - Translation GNU C++14 implementation strings *800 Sep/28/2018 13:06
13 A - Soldier and Bananas GNU C++14 brute force implementation math *800 Sep/28/2018 12:47
12 A - cAPS lOCK GNU C++14 implementation strings *1000 Sep/28/2018 11:50
11 A - Lucky Division GNU C++14 brute force number theory *1000 Sep/28/2018 11:02
10 A - Boy or Girl GNU C++14 brute force implementation strings *800 Sep/28/2018 10:48
9 A - Pangram GNU C++14 implementation strings *800 Sep/27/2018 00:50
8 B - Taxi GNU C++14 *special problem greedy implementation *1100 Sep/27/2018 00:02
7 A - Beautiful Matrix GNU C++14 implementation *800 Sep/26/2018 02:19
6 A - Word Capitalization GNU C++14 implementation strings *800 Sep/26/2018 02:09
5 A - Stones on the Table GNU C++14 implementation *800 Sep/26/2018 02:06
4 A - Helpful Maths GNU C++14 greedy implementation sortings strings *800 Sep/26/2018 02:02
3 A - Bit++ GNU C++14 implementation *800 Sep/26/2018 01:32
2 A - String Task GNU C++14 implementation strings *1000 Sep/24/2018 22:41
1 A - Way Too Long Words GNU C++14 strings *800 Sep/12/2018 14:18

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