| # | Problem | Solution | Tags | Submitted |
|---|---|---|---|---|
| 1 | B - Center Alignment | C++23 (GCC 15.2.0) |
AtCoder *200 |
Feb/14/2026 18:30 |
| 2 | A - Strong Word | C++23 (GCC 15.2.0) |
AtCoder *100 |
Feb/14/2026 18:22 |
| 3 | D - Pawn Line | C++23 (GCC 15.2.0) |
AtCoder *400 |
Jan/31/2026 19:08 |
| 4 | C - Chokutter Addiction | C++23 (GCC 15.2.0) |
AtCoder *300 |
Jan/31/2026 18:25 |
| 5 | B - Setsubun | C++23 (GCC 15.2.0) |
AtCoder *200 |
Jan/31/2026 18:11 |
| 6 | A - Append s | C++23 (GCC 15.2.0) |
AtCoder *100 |
Jan/31/2026 18:01 |
| 7 | C - Flapping Takahashi | C++23 (GCC 15.2.0) |
AtCoder *300 |
Nov/29/2025 18:26 |
| 8 | B - Bird Watching | C++23 (GCC 15.2.0) |
AtCoder *200 |
Nov/29/2025 18:10 |
| 9 | A - Balloon Trip | C++23 (GCC 15.2.0) |
AtCoder *100 |
Nov/29/2025 18:05 |
| 10 | C - Robot Factory | C++23 (GCC 15.2.0) |
AtCoder *300 |
Nov/08/2025 18:12 |
| 11 | B - Robot Weight | C++23 (GCC 15.2.0) |
AtCoder *200 |
Nov/08/2025 18:06 |
| 12 | A - Robot Balance | C++23 (GCC 15.2.0) |
AtCoder *100 |
Nov/08/2025 18:01 |
| 13 | C - Odd One Subsequence | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/25/2025 18:05 |
| 14 | B - N - 1 | C++ 20 (gcc 12.2) |
AtCoder *200 |
Oct/25/2025 18:02 |
| 15 | A - Too Many Requests | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/25/2025 18:01 |
| 16 | C - Brackets Stack Query | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/18/2025 19:47 |
| 17 | B - Most Frequent Substrings | C++ 20 (gcc 12.2) |
AtCoder *200 |
Oct/18/2025 18:42 |
| 18 | A - Grandma's Footsteps | C++ 20 (gcc 12.2) |
AtCoder *150 |
Oct/18/2025 18:34 |
| 19 | A - AC or WA | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/05/2025 02:12 |
| 20 | A - Equally | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/05/2025 02:02 |
| 21 | C - Upgrade Required | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/04/2025 18:30 |
| 22 | B - The Odd One Out | C++ 20 (gcc 12.2) |
AtCoder *200 |
Oct/04/2025 18:13 |
| 23 | A - OS Versions | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/04/2025 18:08 |
| 24 | D - Friends | C++ 20 (gcc 12.2) |
AtCoder *400 |
Sep/26/2025 20:57 |
| 25 | D - Candy Distribution | C++ 20 (gcc 12.2) |
AtCoder *400 |
Sep/26/2025 20:50 |
| 26 | D - Multiple of 2019 | C++ 20 (gcc 12.2) |
AtCoder *400 |
Sep/25/2025 02:55 |
| 27 | D - aab aba baa | C++ 20 (gcc 12.2) |
AtCoder *400 |
Sep/25/2025 02:21 |
| 28 | C - Candies | C++ 20 (gcc 12.2) |
AtCoder *300 |
Sep/16/2025 17:54 |
| 29 | D - Sum of Large Numbers | C++ 20 (gcc 12.2) |
AtCoder *400 |
Sep/16/2025 17:49 |
| 30 | A - Scary Fee | C++ 20 (gcc 12.2) |
AtCoder *150 |
Sep/15/2025 14:44 |
| 31 | D - Substr Swap | C++ 20 (gcc 12.2) |
AtCoder *400 |
Aug/16/2025 18:34 |
| 32 | C - King's Summit | C++ 20 (gcc 12.2) |
AtCoder *300 |
Aug/16/2025 18:25 |
| 33 | B - Get Min | C++ 20 (gcc 12.2) |
AtCoder *200 |
Aug/16/2025 18:06 |
| 34 | A - AtCoder Language | C++ 20 (gcc 12.2) |
AtCoder *100 |
Aug/16/2025 18:03 |
| 35 | D - XOR Shortest Walk | C++ 20 (gcc 12.2) |
AtCoder *400 |
Jun/15/2025 22:04 |
| 36 | C - Rotatable Array | C++ 20 (gcc 12.2) |
AtCoder *300 |
Jun/14/2025 18:59 |
| 37 | B - Reverse Proxy | C++ 20 (gcc 12.2) |
AtCoder *200 |
Jun/14/2025 18:15 |
| 38 | A - G1 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Jun/14/2025 18:02 |
| 39 | A - Connection and Disconnection | C++ 20 (gcc 12.2) |
AtCoder *300 |
Jun/12/2025 20:01 |
| 40 | D - Flip to Gather | C++ 20 (gcc 12.2) |
AtCoder *400 |
Jun/01/2025 19:01 |
| 41 | C - Not All Covered | C++ 20 (gcc 12.2) |
AtCoder *300 |
May/31/2025 18:21 |
| 42 | A - Timeout | C++ 20 (gcc 12.2) |
AtCoder *150 |
May/31/2025 18:14 |
| 43 | B - Compression | C++ 20 (gcc 12.2) |
AtCoder *150 |
May/31/2025 18:08 |
| 44 | D - XOR World | C++ 20 (gcc 12.2) |
AtCoder *400 |
May/24/2025 19:41 |
| 45 | C - GCD on Blackboard | C++ 20 (gcc 12.2) |
AtCoder *300 |
May/24/2025 19:39 |
| 46 | D - XXOR | C++ 20 (gcc 12.2) |
AtCoder *400 |
May/24/2025 19:30 |
| 47 | C - K-th Substring | C++ 20 (gcc 12.2) |
AtCoder *300 |
May/24/2025 19:08 |
| 48 | D - Kth Excluded | C++ 20 (gcc 12.2) |
AtCoder *400 |
May/24/2025 18:43 |
| 49 | B - cat | C++ 20 (gcc 12.2) |
AtCoder *200 |
May/22/2025 23:06 |
| 50 | B - Who is Missing? | C++ 20 (gcc 12.2) |
AtCoder *200 |
May/18/2025 18:26 |
| 51 | B - Commencement | C++ 20 (gcc 12.2) |
AtCoder *200 |
May/18/2025 18:19 |
| 52 | B - Base 2 | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/25/2025 20:16 |
| 53 | B - ASCII Art | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/25/2025 20:13 |
| 54 | A - First Player | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/25/2025 20:06 |
| 55 | B - Typing | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/25/2025 19:28 |
| 56 | B - Frog 2 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/21/2025 08:08 |
| 57 | A - Frog 1 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/21/2025 08:06 |
| 58 | B - Prefix and Suffix | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/17/2025 20:35 |
| 59 | A - Registration | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/17/2025 20:35 |
| 60 | C - Many Formulas | C++ 20 (gcc 12.2) |
AtCoder *300 |
Apr/17/2025 20:29 |
| 61 | A - Can't Wait for Holiday | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/17/2025 16:51 |
| 62 | B - racecar | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/14/2025 03:29 |
| 63 | A - Rainy Season | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/14/2025 02:56 |
| 64 | A - Changing a Character | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/14/2025 02:54 |
| 65 | B - 1D Keyboard | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/13/2025 20:21 |
| 66 | B - Counting Roads | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/10/2025 12:39 |
| 67 | B - Grid Walk | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/10/2025 12:39 |
| 68 | B - Nice Grid | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/10/2025 12:39 |
| 69 | ABC081B - Shift only | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/10/2025 12:38 |
| 70 | B - Second Best | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/06/2025 21:54 |
| 71 | B - Adjacency Matrix | C++ 20 (gcc 12.2) |
AtCoder *150 |
Apr/06/2025 21:51 |
| 72 | B - Matrix Transposition | C++ 20 (gcc 12.2) |
AtCoder *200 |
Apr/06/2025 21:45 |
| 73 | B - Couples | C++ 20 (gcc 12.2) |
AtCoder *150 |
Apr/06/2025 21:42 |
| 74 | A - Filter | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/28/2025 04:56 |
| 75 | A - Three Threes | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/28/2025 04:55 |
| 76 | B - Make Target | C++ 20 (gcc 12.2) |
AtCoder *200 |
Mar/28/2025 03:57 |
| 77 | A - Strictly Increasing? | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/26/2025 00:09 |
| 78 | A - Count Down | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/26/2025 00:08 |
| 79 | A - Insert | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/26/2025 00:08 |
| 80 | A - Adjacent Product | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/26/2025 00:08 |
| 81 | A - Wrong Answer | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/24/2025 02:36 |
| 82 | A - Welcome to AtCoder Land | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/24/2025 02:34 |
| 83 | A - Buy a Pen | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/24/2025 02:33 |
| 84 | D - Div Game | C++ 20 (gcc 12.2) |
AtCoder *400 |
Mar/22/2025 11:03 |
| 85 | C - Next Prime | C++ 20 (gcc 12.2) |
AtCoder *300 |
Mar/22/2025 10:55 |
| 86 | A - 321-like Checker | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/20/2025 21:03 |
| 87 | A - aaaadaa | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/20/2025 20:59 |
| 88 | A - Expired? | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/20/2025 20:56 |
| 89 | A - tcdr | C++ 20 (gcc 12.2) |
AtCoder *100 |
Mar/18/2025 19:31 |
| 90 | C - Shortest Duplicate Subarray | C++ 20 (gcc 12.2) |
AtCoder *300 |
Mar/01/2025 18:19 |
| 91 | C - Unification | C++ 20 (gcc 12.2) |
AtCoder *300 |
Feb/24/2025 11:04 |
| 92 | A - Strings | C++ 20 (gcc 12.2) |
AtCoder *100 |
Feb/18/2025 20:56 |
| 93 | C - Bib | C++ 20 (gcc 12.2) |
AtCoder *300 |
Feb/08/2025 18:20 |
| 94 | A - Shuffled Equation | C++ 20 (gcc 12.2) |
AtCoder *100 |
Feb/08/2025 18:01 |
| 95 | C - Pigeonhole Query | C++ 20 (gcc 12.2) |
AtCoder *300 |
Feb/02/2025 02:14 |
| 96 | B - Seek Grid | C++ 20 (gcc 12.2) |
AtCoder *200 |
Feb/01/2025 22:56 |
| 97 | A - Lucky Direction | C++ 20 (gcc 12.2) |
AtCoder *100 |
Feb/01/2025 22:43 |
| 98 | C - Paint to make a rectangle | C++ 20 (gcc 12.2) |
AtCoder *300 |
Jan/25/2025 20:13 |
| 99 | B - Geometric Sequence | C++ 20 (gcc 12.2) |
AtCoder *200 |
Jan/25/2025 19:57 |
| 100 | A - 12435 | C++ 20 (gcc 12.2) |
AtCoder *150 |
Jan/25/2025 19:54 |
| 101 | C - Illuminate Buildings | C++ 20 (gcc 12.2) |
AtCoder *350 |
Dec/23/2024 01:40 |
| 102 | B - Santa Claus 1 | C++ 20 (gcc 12.2) |
AtCoder *200 |
Dec/21/2024 18:09 |
| 103 | E - Takahashi is Slime 2 | C++ 20 (gcc 12.2) |
AtCoder *450 |
Dec/14/2024 20:01 |
| 104 | D - Repeated Sequence | C++ 20 (gcc 12.2) |
AtCoder *400 |
Dec/14/2024 18:38 |
| 105 | C - Perfect Standings | C++ 20 (gcc 12.2) |
AtCoder *300 |
Dec/14/2024 18:20 |
| 106 | B - ARC Division | C++ 20 (gcc 12.2) |
AtCoder *200 |
Dec/14/2024 18:13 |
| 107 | C - Move Segment | C++ 20 (gcc 12.2) |
AtCoder *300 |
Nov/16/2024 19:18 |
| 108 | B - Hurdle Parsing | C++ 20 (gcc 12.2) |
AtCoder *200 |
Nov/16/2024 18:06 |
| 109 | A - 123233 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Nov/16/2024 18:02 |
| 110 | B - Garbage Collection | C++ 20 (gcc 12.2) |
AtCoder *200 |
Nov/02/2024 18:51 |
| 111 | D - Count Simple Paths | C++ 20 (gcc 12.2) |
AtCoder *425 |
Nov/02/2024 18:48 |
| 112 | C - Repeating | C++ 20 (gcc 12.2) |
AtCoder *300 |
Nov/02/2024 18:23 |
| 113 | A - Pairing | C++ 20 (gcc 12.2) |
AtCoder *100 |
Nov/02/2024 18:05 |
| 114 | C - Avoid Knight Attack | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/26/2024 18:31 |
| 115 | B - Avoid Rook Attack | C++ 20 (gcc 12.2) |
AtCoder *200 |
Oct/26/2024 18:12 |
| 116 | A - Rearranging ABC | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/26/2024 18:01 |
| 117 | D - Cycle | C++ 20 (gcc 12.2) |
AtCoder *400 |
Oct/19/2024 19:12 |
| 118 | C - Prepare Another Box | C++ 20 (gcc 12.2) |
AtCoder *350 |
Oct/19/2024 18:42 |
| 119 | B - Hands on Ring (Easy) | C++ 20 (gcc 12.2) |
AtCoder *250 |
Oct/19/2024 18:32 |
| 120 | A - Candy Button | C++ 20 (gcc 12.2) |
AtCoder *150 |
Oct/19/2024 18:09 |
| 121 | D - ABA | C++ 20 (gcc 12.2) |
AtCoder *400 |
Oct/12/2024 19:18 |
| 122 | B - Traveling Takahashi Problem | C++ 20 (gcc 12.2) |
AtCoder *150 |
Oct/12/2024 18:09 |
| 123 | A - Seats | C++ 20 (gcc 12.2) |
AtCoder *100 |
Oct/12/2024 18:02 |
| 124 | C - Separated Lunch | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/05/2024 21:48 |
| 125 | C - Count Arithmetic Subarrays | C++ 20 (gcc 12.2) |
AtCoder *300 |
Aug/31/2024 18:50 |
| 126 | B - Piano 3 | C++ 20 (gcc 12.2) |
AtCoder *200 |
Aug/31/2024 18:28 |
| 127 | A - 369 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Aug/31/2024 18:07 |
| 128 | B - Cut .0 | C++ 20 (gcc 12.2) |
AtCoder *150 |
Aug/17/2024 19:04 |
| 129 | A - Shout Everyday | C++ 20 (gcc 12.2) |
AtCoder *150 |
Aug/17/2024 19:00 |
| 130 | C - Minimum Glutton | C++ 20 (gcc 12.2) |
AtCoder *250 |
Jul/27/2024 18:22 |
| 131 | A - Glutton Takahashi | C++ 20 (gcc 12.2) |
AtCoder *100 |
Jul/27/2024 18:02 |
| 132 | B - Right Triangle | C++ 20 (gcc 12.2) |
AtCoder *200 |
Jul/13/2024 18:54 |
| 133 | D - Masked Popcount | C++ 20 (gcc 12.2) |
AtCoder *400 |
Jun/01/2024 18:36 |
| 134 | C - Keys | C++ 20 (gcc 12.2) |
AtCoder *300 |
Jun/01/2024 18:24 |
| 135 | B - Nutrients | C++ 20 (gcc 12.2) |
AtCoder *150 |
Jun/01/2024 18:11 |
| 136 | A - Subsegment Reverse | C++ 20 (gcc 12.2) |
AtCoder *100 |
Jun/01/2024 18:02 |
| 137 | D - Permutation Subsequence | C++ 20 (gcc 12.2) |
AtCoder *425 |
May/04/2024 19:06 |
| 138 | A - AtCoder Line | C++ 20 (gcc 12.2) |
AtCoder *100 |
May/04/2024 18:38 |
| 139 | C - Standing On The Shoulders | C++ 20 (gcc 12.2) |
AtCoder *300 |
May/04/2024 18:33 |
| 140 | C - Merge the balls | C++ 20 (gcc 12.2) |
AtCoder *250 |
Apr/27/2024 18:28 |
| 141 | B - Spot the Difference | C++ 20 (gcc 12.2) |
AtCoder *150 |
Apr/27/2024 18:06 |
| 142 | A - The bottom of the ninth | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/27/2024 18:03 |
| 143 | C - Airport Code | C++ 20 (gcc 12.2) |
AtCoder *300 |
Apr/13/2024 18:20 |
| 144 | A - Zero Sum Game | C++ 20 (gcc 12.2) |
AtCoder *100 |
Apr/13/2024 18:02 |
| 145 | D - String Bags | C++ 20 (gcc 12.2) |
AtCoder *425 |
Mar/10/2024 21:15 |
| 146 | C - A+B+C | C++ 20 (gcc 12.2) |
AtCoder *250 |
Mar/09/2024 18:20 |
| 147 | B - Delimiter | C++ 20 (gcc 12.2) |
AtCoder *150 |
Mar/09/2024 18:06 |
| 148 | A - Spoiler | C++ 20 (gcc 12.2) |
AtCoder *150 |
Mar/09/2024 18:02 |
| 149 | D - Diversity of Scores | C++ 20 (gcc 12.2) |
AtCoder *400 |
Mar/02/2024 18:40 |
| 150 | C - 343 | C++ 20 (gcc 12.2) |
AtCoder *250 |
Mar/02/2024 18:15 |
| 151 | D - Only one of two | C++ 20 (gcc 12.2) |
AtCoder *400 |
Feb/18/2024 14:15 |
| 152 | C - Takahashi Gets Lost | C++ 20 (gcc 12.2) |
AtCoder *250 |
Feb/17/2024 18:30 |
| 153 | B - Foreign Exchange | C++ 20 (gcc 12.2) |
AtCoder *150 |
Feb/17/2024 18:12 |
| 154 | A - Print 341 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Feb/17/2024 18:02 |
| 155 | D - Super Takahashi Bros. | C++ 20 (gcc 12.2) |
AtCoder *425 |
Feb/16/2024 00:50 |
| 156 | C - Divide and Divide | C++ 20 (gcc 12.2) |
AtCoder *300 |
Feb/10/2024 18:19 |
| 157 | B - Append | C++ 20 (gcc 12.2) |
AtCoder *200 |
Feb/10/2024 18:03 |
| 158 | A - Arithmetic Progression | C++ 20 (gcc 12.2) |
AtCoder *100 |
Feb/10/2024 18:01 |
| 159 | A - Counting Passes | C++ 20 (gcc 12.2) |
AtCoder *100 |
Nov/26/2023 18:13 |
| 160 | C - World Tour Finals | C++ 20 (gcc 12.2) |
AtCoder *250 |
Oct/26/2023 00:10 |
| 161 | C - 321-like Searcher | C++ 20 (gcc 12.2) |
AtCoder *300 |
Oct/02/2023 15:16 |
| 162 | C - Festival | C++ 20 (gcc 12.2) |
AtCoder *250 |
Sep/30/2023 18:26 |
| 163 | A - First ABC 2 | C++ 20 (gcc 12.2) |
AtCoder *100 |
Sep/30/2023 18:03 |
Last Updated: February 14, 2026 at 23:25 BDT (UTC+6)