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https://github.com/stwind/atcoder
Playing AtCoder
https://github.com/stwind/atcoder
atcoder cpp
Last synced: 12 days ago
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Playing AtCoder
- Host: GitHub
- URL: https://github.com/stwind/atcoder
- Owner: stwind
- Created: 2020-06-18T11:43:06.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2023-10-17T12:47:34.000Z (about 1 year ago)
- Last Synced: 2024-04-17T02:00:15.153Z (9 months ago)
- Topics: atcoder, cpp
- Language: C++
- Homepage:
- Size: 736 KB
- Stars: 1
- Watchers: 3
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# AtCoder
Playing [AtCoder](https://atcoder.jp/).
## Requirements
- gcc 12
## Problems
| Contest | Problem | Memo |
| ------------------------------ | -------------------------------------------------------------------------------------------------------------------- | --------------------------------------- |
| ABC167 | [D - Teleporter](https://atcoder.jp/contests/abc167/tasks/abc167_d) | DP Doubling |
| typical90 | [012 - Red Painting（★4）](https://atcoder.jp/contests/typical90/tasks/typical90_l) | Union Find |
| atc001 | [B - Union Find](https://atcoder.jp/contests/atc001/tasks/unionfind_a) | Union Find |
| abc097 | [D - Equals](https://atcoder.jp/contests/abc097/tasks/arc097_b) | Union Find |
| arc032 | [B - 道路工事](https://atcoder.jp/contests/arc032/tasks/arc032_2) | Union Find |
| abc049 | [D - 連結](https://atcoder.jp/contests/abc049/tasks/arc065_b) | Union Find |
| abc120 | [D - Decayed Bridges](https://atcoder.jp/contests/abc120/tasks/abc120_d) | Union Find |
| abc157 | [D - Friend Suggestions](https://atcoder.jp/contests/abc157/tasks/abc157_d) | Union Find |
| typical90 | [013 - Passing（★5）](https://atcoder.jp/contests/typical90/tasks/typical90_m) | Dijkstra |
| abc034 | [C - 経路](https://atcoder.jp/contests/abc034/tasks/abc034_c) | 二項係数 |
| abc185 | [C - Duodecim Ferra](https://atcoder.jp/contests/abc185/tasks/abc185_c) | 二項係数 |
| typical90 | [015 - Don't be too close（★6）](https://atcoder.jp/contests/typical90/tasks/typical90_o) | 二項係数 |
| atc002 | [B - n^p mod m](https://atcoder.jp/contests/atc002/tasks/atc002_b) | 繰返し二乗法 |
| abc167 | [E - Colorful Blocks](https://atcoder.jp/contests/abc167/tasks/abc167_e) | 二項係数 |
| abc021 | [D - 多重ループ](https://atcoder.jp/contests/abc021/tasks/abc021_d) | 二項係数 |
| agc025 | [B - RGB Coloring](https://atcoder.jp/contests/agc025/tasks/agc025_b) | 二項係数, 素因数分解 |
| arc077 | [D - 11](https://atcoder.jp/contests/arc077/tasks/arc077_b) | 二項係数 |
| arc116 | [C - Multiple Sequences](https://atcoder.jp/contests/arc116/tasks/arc116_c) | 二項係数, 素因数分解 |
| practice2 | [B - Fenwick Tree](https://atcoder.jp/contests/practice2/tasks/practice2_b) | Binary Indexed Tree |
| abc038 | [D - プレゼント](https://atcoder.jp/contests/abc038/tasks/abc038_d) | Binary Indexed Tree |
| abc036 | [C - 座圧](https://atcoder.jp/contests/abc036/tasks/abc036_c) | 座標圧縮 |
| abc113 | [C - ID](https://atcoder.jp/contests/abc113/tasks/abc113_c) | 座標圧縮 |
| abc107 | [B - Grid Compression](https://atcoder.jp/contests/abc107/tasks/abc107_b) | 座標圧縮 |
| abc213 | [C - Reorder Cards](https://atcoder.jp/contests/abc213/tasks/abc213_c) | 座標圧縮 |
| abc231 | [F - Jealous Two](https://atcoder.jp/contests/abc231/tasks/abc231_f) | 座標圧縮, Binary Indexed Tree |
| abc234 | [D - Prefix K-th Max](https://atcoder.jp/contests/abc234/tasks/abc234_d) | Heap, Binary Indexed Tree |
| chokudai_S001 | [J - 転倒数](https://atcoder.jp/contests/chokudai_S001/tasks/chokudai_S001_j) | Binary Indexed Tree |
| abc185 | [F - Range Xor Query](https://atcoder.jp/contests/abc185/tasks/abc185_f) | Binary Indexed Tree |
| arc033 | [C - データ構造](https://atcoder.jp/contests/arc033/tasks/arc033_3) | Binary Indexed Tree |
| abc035 | [C - オセロ](https://atcoder.jp/contests/abc035/tasks/abc035_c) | 累積和, いもす法 |
| abc014 | [C - AtColor](https://atcoder.jp/contests/abc014/tasks/abc014_3) | 累積和, いもす法 |
| abc138 | [D - Ki](https://atcoder.jp/contests/abc138/tasks/abc138_d) | 累積和 |
| abc018 | [C - 菱型カウント](https://atcoder.jp/contests/abc018/tasks/abc018_3) | 累積和, いもす法 |
| typical90 | [028 - Cluttered Paper（★4）](https://atcoder.jp/contests/typical90/tasks/typical90_ab) | 累積和, いもす法 |
| nikkei2019-final | [A - Abundant Resources](https://atcoder.jp/contests/nikkei2019-final/tasks/nikkei2019_final_a) | 累積和 |
| abc084 | [D - 2017-like Number](https://atcoder.jp/contests/abc084/tasks/abc084_d) | 累積和, 素数 |
| agc023 | [A - Zero-Sum Ranges](https://atcoder.jp/contests/agc023/tasks/agc023_a) | 累積和 |
| abc005 | [D - おいしいたこ焼きの焼き方](https://atcoder.jp/contests/abc005/tasks/abc005_4) | 累積和 |
| abc086 | [D - Checker](https://atcoder.jp/contests/abc086/tasks/arc089_b) | 累積和 |
| abc032 | [C - 列](https://atcoder.jp/contests/abc032/tasks/abc032_c) | しゃくとり法 |
| abc038 | [C - 単調増加](https://atcoder.jp/contests/abc038/tasks/abc038_c) | しゃくとり法 |
| abc153 | [F - Silver Fox vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_f) | いもす法 |
| arc022 | [B - 細長いお菓子](https://atcoder.jp/contests/arc022/tasks/arc022_2) | しゃくとり法 |
| abc098 | [D - Xor Sum 2](https://atcoder.jp/contests/abc098/tasks/arc098_b) | しゃくとり法 |
| abc017 | [D - サプリメント](https://atcoder.jp/contests/abc017/tasks/abc017_4) | 累積和, しゃくとり法 |
| abc134 | [C - Exception Handling](https://atcoder.jp/contests/abc134/tasks/abc134_c) | 累積和 |
| tkppc3 | [D - 巨大チェスボード](https://atcoder.jp/contests/tkppc3/tasks/tkppc3_d) | 累積和 |
| abc122 | [C - GeT AC](https://atcoder.jp/contests/abc122/tasks/abc122_c) | 累積和 |
| abc125 | [C - GCD on Blackboard](https://atcoder.jp/contests/abc125/tasks/abc125_c) | 累積和 |
| abjoi2017yoc125 | [C - 休憩スペース (Refreshment Area)](https://atcoder.jp/contests/joi2017yo/tasks/joi2017yo_c) | 累積和 |
| abc080 | [D - Recording](https://atcoder.jp/contests/abc080/tasks/abc080_d) | 累積和 |
| bitflyer2018-qual | [D - ハンコ](https://atcoder.jp/contests/bitflyer2018-qual/tasks/bitflyer2018_qual_d) | 累積和, いもす法, 座標圧縮 |
| arc077 | [E - guruguru](https://atcoder.jp/contests/arc077/tasks/arc077_c) | 累積和, いもす法 |
| abc197 | [C - ORXOR](https://atcoder.jp/contests/abc197/tasks/abc197_c) | bit |
| abc147 | [D - Xor Sum 4](https://atcoder.jp/contests/abc147/tasks/abc147_d) | bit |
| arc114 | [A - Not coprime](https://atcoder.jp/contests/arc114/tasks/arc114_a) | bit, 素数 |
| abc194 | [C - Squared Error](https://atcoder.jp/contests/abc194/tasks/abc194_c) | 主客転倒 |
| arc107 | [A - Simple Math](https://atcoder.jp/contests/arc107/tasks/arc107_a) | 割り算 |
| arc111 | [A - Simple Math 2](https://atcoder.jp/contests/arc111/tasks/arc111_a) | 割り算 |
| abc110 | [D - Factorization](https://atcoder.jp/contests/abc110/tasks/abc110_d) | 二項係数, 素因数分解 |
| arc004 | [D - 表現の自由 ( Freedom of expression )](https://atcoder.jp/contests/arc004/tasks/arc004_4) | 二項係数, 素因数分解 |
| caddi2018 | [C - Product and GCD](https://atcoder.jp/contests/caddi2018/tasks/caddi2018_a) | 素因数分解 |
| arc110 | [D - Binomial Coefficient is Fun](https://atcoder.jp/contests/arc110/tasks/arc110_d) | 二項係数 |
| arc107 | [C - Shuffle Permutation](https://atcoder.jp/contests/arc107/tasks/arc107_c) | Union Find |
| arc004 | [A - 2 点間距離の最大値 ( The longest distance )](https://atcoder.jp/contests/arc004/tasks/arc004_1) | 数学 |
| abc168 | [C - : (Colon)](https://atcoder.jp/contests/abc168/tasks/abc168_c) | 三角関数 |
| abc197 | [D - Opposite](https://atcoder.jp/contests/abc197/tasks/abc197_d) | 三角関数 |
| abc144 | [D - Water Bottle](https://atcoder.jp/contests/abc144/tasks/abc144_d) | 三角関数 |
| abc033 | [D - 三角形の分類](https://atcoder.jp/contests/abc033/tasks/abc033_d) | しゃくとり法 |
| abc273 | [D - LRUD Instructions](https://atcoder.jp/contests/abc273/tasks/abc273_d) | 二分探索 |
| abc269 | [E - Last Rook](https://atcoder.jp/contests/abc269/tasks/abc269_e) | 二分探索 |
| abc260 | [D - Draw Your Cards](https://atcoder.jp/contests/abc260/tasks/abc260_d) | 二分探索 |
| abc255 | [D - ±1 Operation 2](https://atcoder.jp/contests/abc255/tasks/abc255_d) | 二分探索 |
| abc255 | [C - ±1 Operation 1](https://atcoder.jp/contests/abc255/tasks/abc255_c) | 二分探索 |
| abc254 | [D - Together Square](https://atcoder.jp/contests/abc254/tasks/abc254_d) | 数学 |
| abc248 | [D - Range Count Query](https://atcoder.jp/contests/abc248/tasks/abc248_d) | 二分探索 |
| abc246 | [D - 2-variable Function](https://atcoder.jp/contests/abc246/tasks/abc246_d) | 二分探索 |
| abc246 | [D - 2-variable Function](https://atcoder.jp/contests/abc246/tasks/abc246_d) | 二分探索 |
| practice2 | [J - Segment Tree](https://atcoder.jp/contests/practice2/tasks/practice2_j) | Segment Tree |
| agc005 | [B - Minimum Sum](https://atcoder.jp/contests/agc005/tasks/agc005_b) | 主客転倒, monotonic stack, Segment Tree |
| abc157 | [E - Simple String Queries](https://atcoder.jp/contests/abc157/tasks/abc157_e) | Segment Tree |
| abc217 | [D - Cutting Woods](https://atcoder.jp/contests/abc217/tasks/abc217_d) | Segment Tree, 座標圧縮 |
| arc008 | [D - タコヤキオイシクナール](https://atcoder.jp/contests/arc008/tasks/arc008_4) | Segment Tree, 座標圧縮, 半環 |
| abc241 | [D - Sequence Query](https://atcoder.jp/contests/abc241/tasks/abc241_d) | Segment Tree, 座標圧縮 |
| abc231 | [C - Counting 2](https://atcoder.jp/contests/abc231/tasks/abc231_c) | 二分探索 |
| abc228 | [D - Linear Probing](https://atcoder.jp/contests/abc228/tasks/abc228_d) | 二分探索 |
| abc216 | [E - Amusement Park](https://atcoder.jp/contests/abc216/tasks/abc216_e) | 二分探索 |
| abc208 | [C - Fair Candy Distribution](https://atcoder.jp/contests/abc208/tasks/abc208_c) | 座標圧縮 |
| abc263 | [C - Monotonically Increasing](https://atcoder.jp/contests/abc263/tasks/abc263_c) | itertools |
| abc232 | [C - Graph Isomorphism](https://atcoder.jp/contests/abc232/tasks/abc232_c) | itertools |
| abc215 | [C - One More aab aba baa](https://atcoder.jp/contests/abc215/tasks/abc215_c) | itertools |
| abc250 | [D - 250-like Number](https://atcoder.jp/contests/abc250/tasks/abc250_d) | 素数 |
| abc215 | [D - Coprime 2](https://atcoder.jp/contests/abc215/tasks/abc215_d) | 素因数分解 |
| abc233 | [C - Product](https://atcoder.jp/contests/abc233/tasks/abc233_c) | DFS |
| abc236 | [D - Dance](https://atcoder.jp/contests/abc236/tasks/abc236_d) | DFS |
| abc213 | [D - Takahashi Tour](https://atcoder.jp/contests/abc213/tasks/abc213_d) | DFS |
| abc284 | [E - Count Simple Paths](https://atcoder.jp/contests/abc284/tasks/abc284_e) | DFS |
| abc240 | [E - Ranges on Tree](https://atcoder.jp/contests/abc240/tasks/abc240_e) | DFS |
| abc239 | [E - Subtree K-th Max](https://atcoder.jp/contests/abc239/tasks/abc239_e) | DFS |
| abc014 | [D - 閉路](https://atcoder.jp/contests/abc014/tasks/abc014_4) | Euler Tour, Segment Tree, LCA |
| abc284 | [C - Count Connected Components](https://atcoder.jp/contests/abc284/tasks/abc284_c) | BFS |
| abc282 | [D - Make Bipartite 2](https://atcoder.jp/contests/abc282/tasks/abc282_d) | BFS |
| abc270 | [C - Simple path](https://atcoder.jp/contests/abc270/tasks/abc270_c) | BFS |
| abc204 | [C - Tour](https://atcoder.jp/contests/abc204/tasks/abc204_c) | BFS |
| abc276 | [E - Round Trip](https://atcoder.jp/contests/abc276/tasks/abc276_e) | BFS |
| abc272 | [D - Root M Leaper](https://atcoder.jp/contests/abc272/tasks/abc272_d) | BFS |
| abc269 | [D - Do use hexagon grid](https://atcoder.jp/contests/abc269/tasks/abc269_d) | BFS |
| abc235 | [D - Multiply and Rotate](https://atcoder.jp/contests/abc235/tasks/abc235_d) | BFS |
| abc232 | [D - Weak Takahashi](https://atcoder.jp/contests/abc232/tasks/abc232_d) | BFS |
| abc211 | [D - Number of Shortest paths](https://atcoder.jp/contests/abc211/tasks/abc211_d) | BFS |
| abc209 | [D - Collision](https://atcoder.jp/contests/abc209/tasks/abc209_d) | BFS |
| abc253 | [C - Max - Min Query](https://atcoder.jp/contests/abc253/tasks/abc253_c) | heap |
| abc223 | [D - Restricted Permutation](https://atcoder.jp/contests/abc223/tasks/abc223_d) | heap |
| abc212 | [D - Querying Multiset](https://atcoder.jp/contests/abc212/tasks/abc212_d) | heap |
| abc007 | [C - 幅優先探索](https://atcoder.jp/contests/abc007/tasks/abc007_3) | BFS |
| abc088 | [D - Grid Repainting](https://atcoder.jp/contests/abc088/tasks/abc088_d) | BFS |
| abc077 | [C - Snuke Festival](https://atcoder.jp/contests/abc077/tasks/arc084_a) | 二分探索 |
| arc005 | [C - 器物損壊！高橋君](https://atcoder.jp/contests/arc005/tasks/arc005_3) | BFS |
| abc176 | [D - Wizard in Maze](https://atcoder.jp/contests/abc176/tasks/abc176_d) | BFS |
| arc061 | [C - たくさんの数式](https://atcoder.jp/contests/arc061/tasks/arc061_a) | bit |
| arc061 | [E - すぬけ君の地下鉄旅行](https://atcoder.jp/contests/arc061/tasks/arc061_c) | BFS, Dijkstra |
| abc277 | [E - Crystal Switches](https://atcoder.jp/contests/abc277/tasks/abc277_e) | BFS, Dijkstra |
| abc217 | [E - Sorting Queries](https://atcoder.jp/contests/abc217/tasks/abc217_e) | heap |
| abc077 | [D - Small Multiple](https://atcoder.jp/contests/abc077/tasks/arc084_b) | BFS |
| abc246 | [E - Bishop 2](https://atcoder.jp/contests/abc246/tasks/abc246_e) | BFS |
| abc170 | [F - Pond Skater](https://atcoder.jp/contests/abc170/tasks/abc170_f) | BFS |
| abc254 | [E - Small d and k](https://atcoder.jp/contests/abc254/tasks/abc254_e) | BFS |
| abc257 | [D - Jumping Takahashi 2](https://atcoder.jp/contests/abc257/tasks/abc257_d) | BFS, 二分探索 |
| abc188 | [E - Peddler](https://atcoder.jp/contests/abc188/tasks/abc188_e) | DP |
| abc244 | [F - Shortest Good Path](https://atcoder.jp/contests/abc244/tasks/abc244_f) | DP, BFS |
| abc251 | [F - Two Spanning Trees](https://atcoder.jp/contests/abc251/tasks/abc251_f) | DFS, BFS |
| abc248 | [C - Dice Sum](https://atcoder.jp/contests/abc248/tasks/abc248_c) | DP, 包除原理 |
| abc245 | [C - Choose Elements](https://atcoder.jp/contests/abc245/tasks/abc245_c) | DP |
| abc242 | [C - 1111gal password](https://atcoder.jp/contests/abc242/tasks/abc242_c) | DP |
| abc211 | [C - chokudai](https://atcoder.jp/contests/abc211/tasks/abc211_c) | DP |
| abc267 | [D - Index × A(Not Continuous ver.)](https://atcoder.jp/contests/abc267/tasks/abc267_d) | DP |
| abc266 | [D - Snuke Panic (1D)](https://atcoder.jp/contests/abc266/tasks/abc266_d) | DP |
| abc261 | [D - Flipping and Bonus](https://atcoder.jp/contests/abc261/tasks/abc261_d) | DP |
| abc222 | [D - Between Two Arrays](https://atcoder.jp/contests/abc222/tasks/abc222_d) | DP |
| abc219 | [D - Strange Lunchbox](https://atcoder.jp/contests/abc219/tasks/abc219_d) | DP |
| abc204 | [D - Cooking](https://atcoder.jp/contests/abc204/tasks/abc204_d) | DP |
| abc253 | [E - Distance Sequence](https://atcoder.jp/contests/abc253/tasks/abc253_e) | DP, いもす法 |
| abc244 | [E - King Bombee](https://atcoder.jp/contests/abc244/tasks/abc244_e) | DP |
| abc233 | [D - Count Interval](https://atcoder.jp/contests/abc233/tasks/abc233_d) | 累積和 |
| abc229 | [D - Longest X](https://atcoder.jp/contests/abc229/tasks/abc229_d) | 累積和, しゃくとり法 |
| abc265 | [D - Iroha and Haiku (New ABC Edition)](https://atcoder.jp/contests/abc265/tasks/abc265_d) | 累積和, しゃくとり法 |
| abc285 | [D - Change Usernames](https://atcoder.jp/contests/abc285/tasks/abc285_d) | Union Find |
| abc231 | [D - Neighbors](https://atcoder.jp/contests/abc231/tasks/abc231_d) | Union Find |
| arc037 | [B - バウムテスト](https://atcoder.jp/contests/arc037/tasks/arc037_b) | Union Find |
| abc226 | [E - Just one](https://atcoder.jp/contests/abc226/tasks/abc226_e) | Union Find, Graph |
| arc106 | [B - Values](https://atcoder.jp/contests/arc106/tasks/arc106_b) | Union Find |
| abc177 | [D - Friends](https://atcoder.jp/contests/abc177/tasks/abc177_d) | Union Find |
| abc206 | [D - KAIBUNsyo](https://atcoder.jp/contests/abc206/tasks/abc206_d) | Union Find |
| aising2019 | [C - Alternating Path](https://atcoder.jp/contests/aising2019/tasks/aising2019_c) | Union Find |
| abc256 | [E - Takahashi's Anguish](https://atcoder.jp/contests/abc256/tasks/abc256_e) | Union Find, Graph |
| abc216 | [D - Pair of Balls](https://atcoder.jp/contests/abc216/tasks/abc216_d) | Topological Sort |
| abc259 | [D - Circumferences](https://atcoder.jp/contests/abc259/tasks/abc259_d) | Union Find |
| abc229 | [E - Graph Destruction](https://atcoder.jp/contests/abc229/tasks/abc229_e) | Union Find |
| abc218 | [E - Destruction](https://atcoder.jp/contests/abc218/tasks/abc218_e) | Union Find |
| abc221 | [C - Select Mul](https://atcoder.jp/contests/abc221/tasks/abc221_c) | bit |
| abc249 | [C - Just K](https://atcoder.jp/contests/abc249/tasks/abc249_c) | bit |
| abc264 | [C - Matrix Reducing](https://atcoder.jp/contests/abc264/tasks/abc264_c) | bit |
| abc229 | [C - Cheese](https://atcoder.jp/contests/abc229/tasks/abc229_c) | greedy |
| abc012 | [D - バスと避けられない運命](https://atcoder.jp/contests/abc012/tasks/abc012_4) | Floyd-Warshall |
| abc079 | [D - Wall](https://atcoder.jp/contests/abc079/tasks/abc079_d) | Floyd-Warshall |
| abc074 | [D - Restoring Road Network](https://atcoder.jp/contests/abc074/tasks/arc083_b) | Floyd-Warshall |
| abc022 | [C - Blue Bird](https://atcoder.jp/contests/abc022/tasks/abc022_c) | Floyd-Warshall |
| abc073 | [D - joisino's travel](https://atcoder.jp/contests/abc073/tasks/abc073_d) | Floyd-Warshall |
| arc035 | [C - アットコーダー王国の交通事情](https://atcoder.jp/contests/arc035/tasks/arc035_c) | Floyd-Warshall |
| abc208 | [D - Shortest Path Queries 2](https://atcoder.jp/contests/abc208/tasks/abc208_d) | Floyd-Warshall |
| abc286 | [E - Souvenir](https://atcoder.jp/contests/abc286/tasks/abc286_e) | Floyd-Warshall |
| typical-algorithm | [B - 区間スケジューリング問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_b) | 区間スケジューリング |
| abc103 | [D - Islands War](https://atcoder.jp/contests/abc103/tasks/abc103_d) | 区間スケジューリング |
| keyence2020 | [B - Robot Arms](https://atcoder.jp/contests/keyence2020/tasks/keyence2020_b) | 区間スケジューリング |
| abc230 | [D - Destroyer Takahashi](https://atcoder.jp/contests/abc230/tasks/abc230_d) | 区間スケジューリング |
| abc131 | [D - Megalomania](https://atcoder.jp/contests/abc131/tasks/abc131_d) | 区間スケジューリング |
| arc106 | [C - Solutions](https://atcoder.jp/contests/arc106/tasks/arc106_c) | 区間スケジューリング |
| abc003 | [D - AtCoder 社の冬](https://atcoder.jp/contests/abc003/tasks/abc003_4) | 包除原理 |
| abc253 | [D - FizzBuzz Sum Hard](https://atcoder.jp/contests/abc253/tasks/abc253_d) | 包除原理 |
| arc054 | [B - ムーアの法則](https://atcoder.jp/contests/arc054/tasks/arc054_b) | 三分探索 |
| abc063 | [D - Widespread](https://atcoder.jp/contests/abc063/tasks/arc075_b) | 二分探索 |
| abc279 | [D - Freefall](https://atcoder.jp/contests/abc279/tasks/abc279_d) | 三分探索 |
| abc109 | [C - Skip](https://atcoder.jp/contests/abc109/tasks/abc109_c) | 最大公約数 |
| abc148 | [C - Snack](https://atcoder.jp/contests/abc148/tasks/abc148_c) | 最小公倍数 |
| abc070 | [C - Multiple Clocks](https://atcoder.jp/contests/abc070/tasks/abc070_c) | 最小公倍数 |
| abc149 | [C - Next Prime](https://atcoder.jp/contests/abc149/tasks/abc149_c) | 素数 |
| arc044 | [A - 素数判定](https://atcoder.jp/contests/arc044/tasks/arc044_a) | 素数 |
| abc112 | [D - Partition](https://atcoder.jp/contests/abc112/tasks/abc112_d) | 約数全列挙 |
| abc156 | [D - Bouquet](https://atcoder.jp/contests/abc156/tasks/abc156_d) | 割り算 |
| abc118 | [C - Monsters Battle Royale](https://atcoder.jp/contests/abc118/tasks/abc118_c) | 最大公約数 |
| abc186 | [E - Throne](https://atcoder.jp/contests/abc186/tasks/abc186_e) | 割り算 |
| abc154 | [D - Dice in Line](https://atcoder.jp/contests/abc154/tasks/abc154_d) | 累積和 |
| agc028 | [A - Two Abbreviations](https://atcoder.jp/contests/agc028/tasks/agc028_a) | 最大公約数 |
| abc075 | [C - Bridge](https://atcoder.jp/contests/abc075/tasks/abc075_c) | Union Find |
| abc172 | [E - NEQ](https://atcoder.jp/contests/abc172/tasks/abc172_e) | 二項係数, 包除原理 |
| abc178 | [C - Ubiquity](https://atcoder.jp/contests/abc178/tasks/abc178_c) | 包除原理 |
| abc102 | [D - Equal Cut](https://atcoder.jp/contests/abc102/tasks/arc100_b) | 累積和, しゃくとり法 |
| abc152 | [F - Tree and Constraints](https://atcoder.jp/contests/abc152/tasks/abc152_f) | 包除原理, LCA |
| abc290 | [D - Marking](https://atcoder.jp/contests/abc290/tasks/abc290_d) | 最大公約数 |
| practice2 | [K - Range Affine Range Sum](https://atcoder.jp/contests/practice2/tasks/practice2_k) | Lazy Segment Tree |
| practice2 | [L - Lazy Segment Tree](https://atcoder.jp/contests/practice2/tasks/practice2_l) | Lazy Segment Tree |
| nikkei2019-final | [D - Deforestation](https://atcoder.jp/contests/nikkei2019-final/tasks/nikkei2019_final_d) | Lazy Segment Tree |
| abc130 | [D - Enough Array](https://atcoder.jp/contests/abc130/tasks/abc130_d) | 累積和, しゃくとり法 |
| arc009 | [C - 高橋君、24 歳](https://atcoder.jp/contests/arc009/tasks/arc009_3) | 包除原理, 割り算 |
| tenka1-2019 | [D - Three Colors](https://atcoder.jp/contests/tenka1-2019/tasks/tenka1_2019_d) | 包除原理, DP |
| abc151 | [F - Enclose All](https://atcoder.jp/contests/abc151/tasks/abc151_f) | 幾何, 二分探索 |
| abc264 | [E - Blackout 2](https://atcoder.jp/contests/abc264/tasks/abc264_e) | Union Find |
| abc183 | [F - Confluence](https://atcoder.jp/contests/abc183/tasks/abc183_f) | Union Find |
| abc087 | [D - People on a Line](https://atcoder.jp/contests/abc087/tasks/arc090_b) | 重み付き Union-Find |
| abc280 | [F - Pay or Receive](https://atcoder.jp/contests/abc280/tasks/abc280_f) | 重み付き Union-Find |
| abc190 | [F - Shift and Inversions](https://atcoder.jp/contests/abc190/tasks/abc190_f) | Binary Indexed Tree |
| tessoku-book | [A67 - MST (Minimum Spanning Tree)](https://atcoder.jp/contests/tessoku-book/tasks/tessoku_book_bo) | Minimum Spanning Tree, Union-Find |
| tessoku-book | [B67 - Max MST](https://atcoder.jp/contests/tessoku-book/tasks/tessoku_book_en) | Minimum Spanning Tree, Union-Find |
| abc065 | [D - Built?](https://atcoder.jp/contests/abc065/tasks/arc076_b) | Minimum Spanning Tree, Union-Find |
| iroha2019-day2 | [D - 楽しすぎる家庭菜園](https://atcoder.jp/contests/iroha2019-day2/tasks/iroha2019_day2_d) | Minimum Spanning Tree, Union-Find |
| typical90 | [060 - Chimera（★5）](https://atcoder.jp/contests/typical90/tasks/typical90_bh) | LIS |
| chokudai_S001 | [H - LIS](https://atcoder.jp/contests/chokudai_S001/tasks/chokudai_S001_h) | LIS |
| abc134 | [E - Sequence Decomposing](https://atcoder.jp/contests/abc134/tasks/abc134_e) | LIS |
| chokudai_S002 | [L - 長方形 β](https://atcoder.jp/contests/chokudai_S002/tasks/chokudai_S002_l) | LIS |
| abc061 | [D - Score Attack](https://atcoder.jp/contests/abc061/tasks/abc061_d) | Bellman-Ford |
| ttpc2015 | [N - 何かグラフの問題](https://atcoder.jp/contests/ttpc2015/tasks/ttpc2015_n) | Bellman-Ford |
| abc137 | [E - Coins Respawn](https://atcoder.jp/contests/abc137/tasks/abc137_e) | Bellman-Ford |
| abc051 | [D - Candidates of No Shortest Paths](https://atcoder.jp/contests/abc051/tasks/abc051_d) | Floyd-Warshall |
| joi2008yo | [F - 船旅](https://atcoder.jp/contests/joi2008yo/tasks/joi2008yo_f) | Dijkstra |
| abc035 | [D - トレジャーハント](https://atcoder.jp/contests/abc035/tasks/abc035_d) | Dijkstra |
| abc095 | [C - Half and Half](https://atcoder.jp/contests/abc095/tasks/arc096_a) | 全探索 |
| abc122 | [B - ATCoder](https://atcoder.jp/contests/abc122/tasks/abc122_b) | 全探索 |
| pakencamp-2019-day3 | [C - カラオケ](https://atcoder.jp/contests/pakencamp-2019-day3/tasks/pakencamp_2019_day3_c) | 全探索 |
| sumitrust2019 | [D - Lucky PIN](https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_d) | 全探索 |
| s8pc-6 | [B - AtCoder Market](https://atcoder.jp/contests/s8pc-6/tasks/s8pc_6_b) | 全探索 |
| joi2008yo | [D - 星座探し](https://atcoder.jp/contests/joi2008yo/tasks/joi2008yo_d) | 全探索 |
| abc128 | [C - Switches](https://atcoder.jp/contests/abc128/tasks/abc128_c) | bit 全探索 |
| abc002 | [D - 派閥](https://atcoder.jp/contests/abc002/tasks/abc002_4) | bit 全探索 |
| joi2008yo | [E - おせんべい](https://atcoder.jp/contests/joi2008yo/tasks/joi2008yo_e) | bit 全探索 |
| s8pc-4 | [B - Buildings are Colorful!](https://atcoder.jp/contests/s8pc-4/tasks/s8pc_4_b) | bit 全探索 |
| abc145 | [C - Average Length](https://atcoder.jp/contests/abc145/tasks/abc145_c) | 順列全探索 |
| abc150 | [C - Count Order](https://atcoder.jp/contests/abc150/tasks/abc150_c) | 順列全探索 |
| joi2009ho | [B - ピザ](https://atcoder.jp/contests/joi2009ho/tasks/joi2009ho_b) | 二分探索 |
| abc023 | [D - 射撃王](https://atcoder.jp/contests/abc023/tasks/abc023_d) | 二分探索 |
| joi2009yo | [D - 薄氷渡り](https://atcoder.jp/contests/joi2009yo/tasks/joi2009yo_d) | DFS |
| joi2011yo | [E - チーズ (Cheese)](https://atcoder.jp/contests/joi2011yo/tasks/joi2011yo_e) | BFS |
| joi2012yo | [E - イルミネーション (Illumination)](https://atcoder.jp/contests/joi2012yo/tasks/joi2012yo_e) | BFS |
| joi2011yo | [D - 1 年生 (A First Grader)](https://atcoder.jp/contests/joi2011yo/tasks/joi2011yo_d) | DP |
| joi2012yo | [D - パスタ (Pasta)](https://atcoder.jp/contests/joi2012yo/tasks/joi2012yo_d) | DP |
| joi2013yo | [D - 暑い日々 (Hot days)](https://atcoder.jp/contests/joi2013yo/tasks/joi2013yo_d) | DP |
| joi2015yo | [D - シルクロード (Silk Road)](https://atcoder.jp/contests/joi2015yo/tasks/joi2015yo_d) | DP |
| pakencamp-2019-day3 | [D - パ研軍旗](https://atcoder.jp/contests/pakencamp-2019-day3/tasks/pakencamp_2019_day3_d) | DP |
| dp | [L - Deque](https://atcoder.jp/contests/dp/tasks/dp_l) | DP |
| dp | [N - Slimes](https://atcoder.jp/contests/dp/tasks/dp_n) | DP |
| joi2015ho | [B - ケーキの切り分け２ (Cake 2)](https://atcoder.jp/contests/joi2015ho/tasks/joi2015ho_b) | DP |
| tdpc | [I - イウィ](https://atcoder.jp/contests/tdpc/tasks/tdpc_iwi) | DP |
| typical-algorithm | [A - 二分探索の練習問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_a) | 二分探索 |
| typical-algorithm | [D - 単一始点最短経路問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_d) | Dijkstra |
| typical-algorithm | [E - 全点対最短経路問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_e) | Floyd-Warshall |
| typical-algorithm | [F - 最小全域木問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_f) | Minimum Spanning Tree, Union-Find |
| typical-algorithm | [C - 巡回セールスマン問題](https://atcoder.jp/contests/typical-algorithm/tasks/typical_algorithm_c) | DP |
| abc180 | [E - Traveling Salesman among Aerial Cities](https://atcoder.jp/contests/abc180/tasks/abc180_e) | DP |
| s8pc-1 | [G - Revenge of Traveling Salesman Problem](https://atcoder.jp/contests/s8pc-1/tasks/s8pc_1_g) | DP |
| joi2014yo | [D - 部活のスケジュール表 (Schedule)](https://atcoder.jp/contests/joi2014yo/tasks/joi2014yo_d) | DP |
| dp | [O - Matching](https://atcoder.jp/contests/dp/tasks/dp_o) | DP |
| abc215 | [E - Chain Contestant](https://atcoder.jp/contests/abc215/tasks/abc215_e) | DP |
| abc018 | [D - バレンタインデー](https://atcoder.jp/contests/abc018/tasks/abc018_4) | 半分全列挙 |
| abc147 | [C - HonestOrUnkind2](https://atcoder.jp/contests/abc147/tasks/abc147_c) | bit 全探索 |
| dp | [U - Grouping](https://atcoder.jp/contests/dp/tasks/dp_u) | DP, bit 全探索 |
| arc016 | [C - ソーシャルゲーム](https://atcoder.jp/contests/arc016/tasks/arc016_3) | DP |
| abc062 | [C - Chocolate Bar](https://atcoder.jp/contests/abc062/tasks/arc074_a) | 全探索 |
| abc032 | [D - ナップサック問題](https://atcoder.jp/contests/abc032/tasks/abc032_d) | DP, bit 全探索, 半分全列挙 |
| arc017 | [C - 無駄なものが嫌いな人](https://atcoder.jp/contests/arc017/tasks/arc017_3) | bit 全探索, 半分全列挙 |
| agc026 | [C - String Coloring](https://atcoder.jp/contests/agc026/tasks/agc026_c) | bit 全探索, 半分全列挙 |
| abc054 | [D - Mixing Experiment](https://atcoder.jp/contests/abc054/tasks/abc054_d) | bit 全探索, 半分全列挙 |
| abc184 | [F - Programming Contest](https://atcoder.jp/contests/abc184/tasks/abc184_f) | bit 全探索, 半分全列挙 |
| joi2017yo | [D - ぬいぐるみの整理 (Plush Toys)](https://atcoder.jp/contests/joi2017yo/tasks/joi2017yo_d) | DP |
| abc006 | [D - トランプ挿入ソート](https://atcoder.jp/contests/abc006/tasks/abc006_4) | LIS |
| joi2016yo | [E - ゾンビ島 (Zombie Island)](https://atcoder.jp/contests/joi2016yo/tasks/joi2016yo_e) | Dijkstra, BFS |
| joi2014yo | [E - タクシー (Taxis)](https://atcoder.jp/contests/joi2014yo/tasks/joi2014yo_e) | Dijkstra, BFS |
| s8pc-1 | [E - 散歩 (E869120 and Path Length)](https://atcoder.jp/contests/s8pc-1/tasks/s8pc_1_e) | べき乗 |
| abc145 | [D - Knight](https://atcoder.jp/contests/abc145/tasks/abc145_d) | 割り算 |
| joi2011ho | [A - 惑星探査 (Planetary Exploration)](https://atcoder.jp/contests/joi2011ho/tasks/joi2011ho1) | 累積和 |
| abc106 | [D - AtCoder Express 2](https://atcoder.jp/contests/abc106/tasks/abc106_d) | 累積和 |
| gigacode-2019 | [D - 家の建設](https://atcoder.jp/contests/gigacode-2019/tasks/gigacode_2019_d) | 累積和 |
| joi2015ho | [A - 鉄道旅行 (Railroad Trip)](https://atcoder.jp/contests/joi2015ho/tasks/joi2015ho_a) | 累積和, いもす法 |
| joi2013ho | [1 - 電飾 (Illumination)](https://atcoder.jp/contests/joi2013ho/tasks/joi2013ho1) | Misc |
| s8pc-5 | [B - Emblem](https://atcoder.jp/contests/s8pc-5/tasks/s8pc_5_b) | Misc |
| s8pc-3 | [B - 石落としゲーム](https://atcoder.jp/contests/s8pc-3/tasks/s8pc_3_b) | Misc |
| abc149 | [B - Greedy Takahashi](https://atcoder.jp/contests/abc149/tasks/abc149_b) | Greedy |
| abc139 | [D - ModSum](https://atcoder.jp/contests/abc139/tasks/abc139_d) | Misc |
| abc150 | [D - Semi Common Multiple](https://atcoder.jp/contests/abc150/tasks/abc150_d) | 最小公倍数 |
| sumitrust2019 | [E - Colorful Hats 2](https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_e) | Misc |
| ddcc2020-qual | [D - Digit Sum Replace](https://atcoder.jp/contests/ddcc2020-qual/tasks/ddcc2020_qual_d) | Misc |
| tenka1-2018-beginner | [D - Crossing](https://atcoder.jp/contests/tenka1-2018-beginner/tasks/tenka1_2018_d) | Misc |
| abc139 | [E - League](https://atcoder.jp/contests/abc139/tasks/abc139_e) | Topological Sort |
| abc031 | [D - 語呂合わせ](https://atcoder.jp/contests/abc031/tasks/abc031_d) | 全探索 |
| abc039 | [D - 画像処理高橋君](https://atcoder.jp/contests/abc039/tasks/abc039_d) | 全探索 |
| abc075 | [D - Axis-Parallel Rectangle](https://atcoder.jp/contests/abc075/tasks/abc075_d) | 全探索 |
| abc004 | [D - マーブル](https://atcoder.jp/contests/abc004/tasks/abc004_4) | 全探索 |
| abc008 | [D - 金塊ゲーム](https://atcoder.jp/contests/abc008/tasks/abc008_4) | DP |
| abc015 | [D - 高橋くんの苦悩](https://atcoder.jp/contests/abc015/tasks/abc015_4) | DP |
| abc037 | [D - 経路](https://atcoder.jp/contests/abc037/tasks/abc037_d) | DP |
| abc056 | [D - No Need](https://atcoder.jp/contests/abc056/tasks/arc070_b) | DP, 二分探索 |
| abc060 | [D - Simple Knapsack](https://atcoder.jp/contests/abc060/tasks/arc073_b) | DP |
| abc007 | [D - 禁止された数字](https://atcoder.jp/contests/abc007/tasks/abc007_4) | 桁 DP |
| abc029 | [D - 1](https://atcoder.jp/contests/abc029/tasks/abc029_d) | 桁 DP |
| abc036 | [D - 塗り絵](https://atcoder.jp/contests/abc036/tasks/abc036_d) | 木 DP |
| abc041 | [D - 徒競走](https://atcoder.jp/contests/abc041/tasks/abc041_d) | DP |
| abc009 | [D - 漸化式](https://atcoder.jp/contests/abc009/tasks/abc009_4) | 行列累乗, 半環 |
| abc011 | [D - 大ジャンプ](https://atcoder.jp/contests/abc011/tasks/abc011_4) | 確率 DP |
| abc024 | [D - 動的計画法](https://atcoder.jp/contests/abc024/tasks/abc024_d) | 数学 |
| abc028 | [D - 乱数生成](https://atcoder.jp/contests/abc028/tasks/abc028_d) | 数学 |
| abc057 | [D - Maximum Average Sets](https://atcoder.jp/contests/abc057/tasks/abc057_d) | 数学 |
| abc026 | [D - 高橋君ボール 1 号](https://atcoder.jp/contests/abc026/tasks/abc026_d) | 二分探索 |
| abc034 | [D - 食塩水](https://atcoder.jp/contests/abc034/tasks/abc034_d) | 二分探索 |
| abc040 | [D - 道路の老朽化対策について](https://atcoder.jp/contests/abc040/tasks/abc040_d) | Union Find |
| abc013 | [D - 阿弥陀](https://atcoder.jp/contests/abc013/tasks/abc013_4) | Doubling |
| abc016 | [D - 一刀両断](https://atcoder.jp/contests/abc016/tasks/abc016_4) | 幾何 |
| abc022 | [D - Big Bang](https://atcoder.jp/contests/abc022/tasks/abc022_d) | 幾何 |
| abc027 | [D - ロボット](https://atcoder.jp/contests/abc027/tasks/abc027_d) | Misc |
| abc062 | [D - 3N Numbers](https://atcoder.jp/contests/abc062/tasks/arc074_b) | Heap |
| abc064 | [D - Insertion](https://atcoder.jp/contests/abc064/tasks/abc064_d) | Misc |
| abc030 | [D - へんてこ辞書](https://atcoder.jp/contests/abc030/tasks/abc030_d) | Misc |
| practice2 | [D - Maxflow](https://atcoder.jp/contests/practice2/tasks/practice2_d) | Max Flow |
| abc010 | [D - 浮気予防](https://atcoder.jp/contests/abc010/tasks/abc010_4) | Max Flow |
| sumitrust2019 | [B - Tax Rate](https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_b) | Misc |
| m-solutions2020 | [B - Magic 2](https://atcoder.jp/contests/m-solutions2020/tasks/m_solutions2020_b) | 全探索 |
| abc105 | [B - Cakes and Donuts](https://atcoder.jp/contests/abc105/tasks/abc105_b) | 全探索 |
| abc157 | [C - Guess The Number](https://atcoder.jp/contests/abc157/tasks/abc157_c) | 全探索 |
| abc106 | [B - 105](https://atcoder.jp/contests/abc106/tasks/abc106_b) | 全探索 |
| abc136 | [B - Uneven Numbers](https://atcoder.jp/contests/abc136/tasks/abc136_b) | 全探索 |
| abc068 | [B - Break Number](https://atcoder.jp/contests/abc068/tasks/abc068_b) | 全探索 |
| abc133 | [B - Good Distance](https://atcoder.jp/contests/abc133/tasks/abc133_b) | 全探索 |
| abc112 | [C - Pyramid](https://atcoder.jp/contests/abc112/tasks/abc112_c) | 全探索 |
| abc057 | [C - Digits in Multiplication](https://atcoder.jp/contests/abc057/tasks/abc057_c) | 全探索 |
| sumitrust2019 | [C - 100 to 105](https://atcoder.jp/contests/sumitrust2019/tasks/sumitb2019_c) | 全探索 |
| abc089 | [C - March](https://atcoder.jp/contests/abc089/tasks/abc089_c) | 全探索 |
| abc167 | [C - Skill Up](https://atcoder.jp/contests/abc167/tasks/abc167_c) | bit 全探索 |
| abc054 | [C - One-stroke Path](https://atcoder.jp/contests/abc054/tasks/abc054_c) | DFS |
| abc165 | [C - Many Requirements](https://atcoder.jp/contests/abc165/tasks/abc165_c) | DFS |
| cpsco2019-s1 | [C - Coins](https://atcoder.jp/contests/cpsco2019-s1/tasks/cpsco2019_s1_c) | DFS |
| panasonic2020 | [D - String Equivalence](https://atcoder.jp/contests/panasonic2020/tasks/panasonic2020_d) | DFS |
| m-solutions2020 | [E - M's Solution](https://atcoder.jp/contests/m-solutions2020/tasks/m_solutions2020_e) | bit 全探索 |
| wupc2019 | [F - RPG](https://atcoder.jp/contests/wupc2019/tasks/wupc2019_f) | Max Flow |
| ddcc2019-final | [D - DISCO!](https://atcoder.jp/contests/ddcc2019-final/tasks/ddcc2019_final_d) | Segment Tree, 半環 |
| code-thanks-festival-2017-open | [H - Union Sets](https://atcoder.jp/contests/code-thanks-festival-2017-open/tasks/code_thanks_festival_2017_h) | 並列二分探索 |
| tokiomarine2020 | [E - O(rand)](https://atcoder.jp/contests/tokiomarine2020/tasks/tokiomarine2020_e) | 包除原理 |
| dp | [V - Subtree](https://atcoder.jp/contests/dp/tasks/dp_v) | 全方位木 DP |
| njpc2017 | [E - 限界集落](https://atcoder.jp/contests/njpc2017/tasks/njpc2017_e) | 全方位木 DP |
| s8pc-4 | [D - Driving on a Tree](https://atcoder.jp/contests/s8pc-4/tasks/s8pc_4_d) | 全方位木 DP |
| arc029 | [D - 高橋君と木のおもちゃ](https://atcoder.jp/contests/arc029/tasks/arc029_4) | 2 乗の木 DP |
| aising2019 | [E - Attack to a Tree](https://atcoder.jp/contests/aising2019/tasks/aising2019_e) | 2 乗の木 DP |
| discovery2016-final | [C - 特別講演「括弧列と塗り分け」](https://atcoder.jp/contests/discovery2016-final/tasks/discovery_2016_final_c) | 2 乗の木 DP |
| arc101 | [E - Ribbons on Tree](https://atcoder.jp/contests/arc101/tasks/arc101_c) | 2 乗の木 DP, 包除原理 |
| arc085 | [E - MUL](https://atcoder.jp/contests/arc085/tasks/arc085_c) | Max Flow |
| tenka1-2015-quala | [C - 天下一美術館](https://atcoder.jp/contests/tenka1-2015-quala/tasks/tenka1_2015_qualA_c) | Max Flow |
| ttpc2015 | [L - グラフ色ぬり](https://atcoder.jp/contests/ttpc2015/tasks/ttpc2015_l) | Max Flow |
| abc011 | [C - 123 引き算](https://atcoder.jp/contests/abc011/tasks/abc011_3) | DP |
| abc021 | [C - 正直者の高橋くん](https://atcoder.jp/contests/abc021/tasks/abc021_c) | DFS |
| abc040 | [C - 柱柱柱柱柱](https://atcoder.jp/contests/abc040/tasks/abc040_c) | DP |
| abc044 | [C - 高橋君とカード](https://atcoder.jp/contests/abc044/tasks/arc060_a) | DP |
| abc087 | [C - Candies](https://atcoder.jp/contests/abc087/tasks/arc090_a) | DP |
| abc099 | [C - Strange Bank](https://atcoder.jp/contests/abc099/tasks/abc099_c) | DP |
| abc122 | [D - We Like AGC](https://atcoder.jp/contests/abc122/tasks/abc122_d) | DP |
| abc129 | [C - Typical Stairs](https://atcoder.jp/contests/abc129/tasks/abc129_c) | DP |
| abc135 | [D - Digits Parade](https://atcoder.jp/contests/abc135/tasks/abc135_d) | DP |
| abc141 | [E - Who Says a Pun?](https://atcoder.jp/contests/abc141/tasks/abc141_e) | DP |
| abc142 | [E - Get Everything](https://atcoder.jp/contests/abc142/tasks/abc142_e) | DP |
| abc145 | [E - All-you-can-eat](https://atcoder.jp/contests/abc145/tasks/abc145_e) | DP |
| abc153 | [E - Crested Ibis vs Monster](https://atcoder.jp/contests/abc153/tasks/abc153_e) | DP |
| abc154 | [E - Almost Everywhere Zero](https://atcoder.jp/contests/abc154/tasks/abc154_e) | 桁 DP |
| abc175 | [E - Picking Goods](https://atcoder.jp/contests/abc175/tasks/abc175_e) | DP |
| abc184 | [D - increment of coins](https://atcoder.jp/contests/abc184/tasks/abc184_d) | DP |
| abc188 | [F - +1-1x2](https://atcoder.jp/contests/abc188/tasks/abc188_f) | DP |
| abc195 | [E - Lucky 7 Battle](https://atcoder.jp/contests/abc195/tasks/abc195_e) | DP |
| abc201 | [D - Game in Momotetsu World](https://atcoder.jp/contests/abc201/tasks/abc201_d) | minimax |
| abc210 | [D - National Railway](https://atcoder.jp/contests/abc210/tasks/abc210_d) | DP |
| arc002 | [C - コマンド入力](https://atcoder.jp/contests/arc002/tasks/arc002_3) | DP |
| arc042 | [C - おやつ](https://atcoder.jp/contests/arc042/tasks/arc042_c) | DP |
| agc044 | [A - Pay to Win](https://atcoder.jp/contests/agc044/tasks/agc044_a) | DP |
| past201912-open | [I - 部品調達](https://atcoder.jp/contests/past201912-open/tasks/past201912_i) | DP |
| past202004-open | [H - 1-9 Grid](https://atcoder.jp/contests/past202004-open/tasks/past202004_h) | DP |
| past202005-open | [H - ハードル走](https://atcoder.jp/contests/past202005-open/tasks/past202005_h) | DP |
| abc037 | [C - 総和](https://atcoder.jp/contests/abc037/tasks/abc037_c) | 累積和 |
| abc089 | [D - Practical Skill Test](https://atcoder.jp/contests/abc089/tasks/abc089_d) | 累積和 |
| abc095 | [D - Static Sushi](https://atcoder.jp/contests/abc095/tasks/arc096_b) | 累積和 |
| abc098 | [C - Attention](https://atcoder.jp/contests/abc098/tasks/arc098_a) | 累積和 |
| abc104 | [D - We Love ABC](https://atcoder.jp/contests/abc104/tasks/abc104_d) | 累積和 |
| abc124 | [D - Handstand](https://atcoder.jp/contests/abc124/tasks/abc124_d) | 累積和, しゃくとり法 |
| abc129 | [D - Lamp](https://atcoder.jp/contests/abc129/tasks/abc129_d) | 累積和 |
| abc149 | [E - Handshake](https://atcoder.jp/contests/abc149/tasks/abc149_e) | 累積和, 二分探索 |
| abc162 | [D - RGB Triplets](https://atcoder.jp/contests/abc162/tasks/abc162_d) | 累積和 |
| abc172 | [C - Tsundoku](https://atcoder.jp/contests/abc172/tasks/abc172_c) | 累積和, 二分探索, しゃくとり法 |
| abc177 | [C - Sum of product of pairs](https://atcoder.jp/contests/abc177/tasks/abc177_c) | 累積和 |
| abc181 | [E - Transformable Teacher](https://atcoder.jp/contests/abc181/tasks/abc181_e) | 累積和, しゃくとり法 |
| abc182 | [D - Wandering](https://atcoder.jp/contests/abc182/tasks/abc182_d) | 累積和 |
| arc025 | [B - チョコレート](https://atcoder.jp/contests/arc025/tasks/arc025_2) | 累積和 |
| arc104 | [B - DNA Sequence](https://atcoder.jp/contests/arc104/tasks/arc104_b) | 累積和 |
| agc015 | [B - Evilator](https://atcoder.jp/contests/agc015/tasks/agc015_b) | Misc |
| abc017 | [C - ハイスコア](https://atcoder.jp/contests/abc017/tasks/abc017_3) | いもす法 |
| abc024 | [B - 自動ドア](https://atcoder.jp/contests/abc024/tasks/abc024_b) | いもす法 |
| abc141 | [C - Attack Survival](https://atcoder.jp/contests/abc141/tasks/abc141_c) | いもす法 |
| abc183 | [D - Water Heater](https://atcoder.jp/contests/abc183/tasks/abc183_d) | いもす法 |
| abc188 | [D - Snuke Prime](https://atcoder.jp/contests/abc188/tasks/abc188_d) | いもす法 |
| abc210 | [C - Colorful Candies](https://atcoder.jp/contests/abc210/tasks/abc210_c) | Sliding Window |
| abc126 | [E - 1 or 2](https://atcoder.jp/contests/abc126/tasks/abc126_e) | Union Find |
| abc189 | [C - Mandarin Orange](https://atcoder.jp/contests/abc189/tasks/abc189_c) | Misc |
| abc214 | [D - Sum of Maximum Weights](https://atcoder.jp/contests/abc214/tasks/abc214_d) | Union Find |
| arc111 | [B - Reversible Cards](https://atcoder.jp/contests/arc111/tasks/arc111_b) | Union Find |
| atc001 | [A - 深さ優先探索](https://atcoder.jp/contests/atc001/tasks/dfs_a) | DFS |
| abc070 | [D - Transit Tree Path](https://atcoder.jp/contests/abc070/tasks/abc070_d) | DFS |
| abc126 | [D - Even Relation](https://atcoder.jp/contests/abc126/tasks/abc126_d) | DFS |
| abc146 | [D - Coloring Edges on Tree](https://atcoder.jp/contests/abc146/tasks/abc146_d) | DFS |
| abc148 | [F - Playing Tag on Tree](https://atcoder.jp/contests/abc148/tasks/abc148_f) | DFS |
| abc198 | [E - Unique Color](https://atcoder.jp/contests/abc198/tasks/abc198_e) | DFS |
| arc022 | [C - ロミオとジュリエット](https://atcoder.jp/contests/arc022/tasks/arc022_3) | DFS |
| arc030 | [B - ツリーグラフ](https://atcoder.jp/contests/arc030/tasks/arc030_2) | DFS |
| abc020 | [C - 壁抜け](https://atcoder.jp/contests/abc020/tasks/abc020_c) | BFS, 二分探索 |
| abc151 | [D - Maze Master](https://atcoder.jp/contests/abc151/tasks/abc151_d) | BFS |
| abc168 | [D - .. (Double Dots)](https://atcoder.jp/contests/abc168/tasks/abc168_d) | BFS |
| abc184 | [E - Third Avenue](https://atcoder.jp/contests/abc184/tasks/abc184_e) | BFS |
| abc185 | [E - Sequence Matching](https://atcoder.jp/contests/abc185/tasks/abc185_e) | DP |
| abc187 | [E - Through Path](https://atcoder.jp/contests/abc187/tasks/abc187_e) | DFS, いもす法 |
| abc213 | [E - Stronger Takahashi](https://atcoder.jp/contests/abc213/tasks/abc213_e) | BFS |
| arc011 | [C - ダブレット](https://atcoder.jp/contests/arc011/tasks/arc011_3) | BFS |
| arc003 | [C - 暗闇帰り道](https://atcoder.jp/contests/arc003/tasks/arc003_3) | BFS |
| arc109 | [A - Hands](https://atcoder.jp/contests/arc109/tasks/arc109_a) | BFS |
| agc033 | [A - Darker and Darker](https://atcoder.jp/contests/agc033/tasks/agc033_a) | BFS |
| agc043 | [A - Range Flip Find Route](https://atcoder.jp/contests/agc043/tasks/agc043_a) | DP |
| past202005-open | [G - グリッド金移動](https://atcoder.jp/contests/past202005-open/tasks/past202005_g) | BFS |
| abc191 | [E - Come Back Quickly](https://atcoder.jp/contests/abc191/tasks/abc191_e) | Dijkstra |
| abc192 | [E - Train](https://atcoder.jp/contests/abc192/tasks/abc192_e) | Dijkstra |
| past201912-open | [J - 地ならし](https://atcoder.jp/contests/past201912-open/tasks/past201912_j) | Dijkstra |
| past201912-open | [K - 巨大企業](https://atcoder.jp/contests/past201912-open/tasks/past201912_k) | Euler Tour |
| abc163 | [F - path pass i](https://atcoder.jp/contests/abc163/tasks/abc163_f) | DFS |
| abc030 | [C - 飛行機乗り](https://atcoder.jp/contests/abc030/tasks/abc030_c) | 二分探索 |
| abc119 | [D - Lazy Faith](https://atcoder.jp/contests/abc119/tasks/abc119_d) | 二分探索 |
| abc128 | [E - Roadwork](https://atcoder.jp/contests/abc128/tasks/abc128_e) | Misc |
| abc143 | [D - Triangles](https://atcoder.jp/contests/abc143/tasks/abc143_d) | 二分探索 |
| abc144 | [E - Gluttony](https://atcoder.jp/contests/abc144/tasks/abc144_e) | 二分探索 |
| abc146 | [C - Buy an Integer](https://atcoder.jp/contests/abc146/tasks/abc146_c) | 二分探索 |
| abc174 | [E - Logs](https://atcoder.jp/contests/abc174/tasks/abc174_e) | 二分探索 |
| abc192 | [D - Base n](https://atcoder.jp/contests/abc192/tasks/abc192_d) | 二分探索 |
| abc205 | [D - Kth Excluded](https://atcoder.jp/contests/abc205/tasks/abc205_d) | 二分探索 |
| abc212 | [C - Min Difference](https://atcoder.jp/contests/abc212/tasks/abc212_c) | 二分探索 |
| arc004 | [C - 平均値太郎の憂鬱 ( The melancholy of Taro Heikinchi )](https://atcoder.jp/contests/arc004/tasks/arc004_3) | 数学 |
| arc037 | [C - 億マス計算](https://atcoder.jp/contests/arc037/tasks/arc037_c) | 二分探索 |
| arc050 | [B - 花束](https://atcoder.jp/contests/arc050/tasks/arc050_b) | 二分探索 |
| arc109 | [B - log](https://atcoder.jp/contests/arc109/tasks/arc109_b) | 二分探索 |
| abc080 | [C - Shopping Street](https://atcoder.jp/contests/abc080/tasks/abc080_c) | bit 全探索 |
| abc173 | [C - H and V](https://atcoder.jp/contests/abc173/tasks/abc173_c) | bit 全探索 |
| abc190 | [C - Bowls and Dishes](https://atcoder.jp/contests/abc190/tasks/abc190_c) | bit 全探索 |
| past201912-open | [G - 組分け](https://atcoder.jp/contests/past201912-open/tasks/past201912_g) | bit 全探索 |
| arc107 | [B - Quadruple](https://atcoder.jp/contests/arc107/tasks/arc107_b) | Misc |
| abc016 | [C - 友達の友達](https://atcoder.jp/contests/abc016/tasks/abc016_3) | Floyd-Warshall |
| abc143 | [E - Travel by Car](https://atcoder.jp/contests/abc143/tasks/abc143_e) | Floyd-Warshall |
| arc001 | [B - リモコン](https://atcoder.jp/contests/arc001/tasks/arc001_2) | BFS |
| abc123 | [D - Cake 123](https://atcoder.jp/contests/abc123/tasks/abc123_d) | Heap |
| abc137 | [D - Summer Vacation](https://atcoder.jp/contests/abc137/tasks/abc137_d) | Heap |
| abc141 | [D - Powerful Discount Tickets](https://atcoder.jp/contests/abc141/tasks/abc141_d) | Heap |
| past202004-open | [F - タスクの消化](https://atcoder.jp/contests/past202004-open/tasks/past202004_f) | Heap |
| past202004-open | [L - 辞書順最小](https://atcoder.jp/contests/past202004-open/tasks/past202004_l) | Heap |
| abc052 | [C - Factors of Factorial](https://atcoder.jp/contests/abc052/tasks/arc067_a) | 素因数分解 |
| abc114 | [D - 756](https://atcoder.jp/contests/abc114/tasks/abc114_d) | 素因数分解 |
| abc142 | [D - Disjoint Set of Common Divisors](https://atcoder.jp/contests/abc142/tasks/abc142_d) | 素因数分解 |
| abc152 | [E - Flatten](https://atcoder.jp/contests/abc152/tasks/abc152_e) | 素因数分解 |
| abc169 | [D - Div Game](https://atcoder.jp/contests/abc169/tasks/abc169_d) | 素因数分解 |
| abc172 | [D - Sum of Divisors](https://atcoder.jp/contests/abc172/tasks/abc172_d) | 素因数分解 |
| abc177 | [E - Coprime](https://atcoder.jp/contests/abc177/tasks/abc177_e) | 素因数分解 |
| arc034 | [C - 約数かつ倍数](https://atcoder.jp/contests/arc034/tasks/arc034_3) | 素因数分解 |
| arc026 | [B - 完全数](https://atcoder.jp/contests/arc026/tasks/arc026_2) | 約数列挙 |
| abc190 | [D - Staircase Sequences](https://atcoder.jp/contests/abc190/tasks/abc190_d) | 約数列挙 |
| arc077 | [D - 11](https://atcoder.jp/contests/arc077/tasks/arc077_b) | 組み合わせ |
| abc132 | [D - Blue and Red Balls](https://atcoder.jp/contests/abc132/tasks/abc132_d) | 組み合わせ |
| abc151 | [E - Max-Min Sums](https://atcoder.jp/contests/abc151/tasks/abc151_e) | 組み合わせ |
| abc171 | [F - Strivore](https://atcoder.jp/contests/abc171/tasks/abc171_f) | 組み合わせ |
| abc178 | [D - Redistribution](https://atcoder.jp/contests/abc178/tasks/abc178_d) | 組み合わせ |
| arc023 | [C - タコヤ木](https://atcoder.jp/contests/arc023/tasks/arc023_3) | 組み合わせ |
| arc039 | [B - 高橋幼稚園](https://atcoder.jp/contests/arc039/tasks/arc039_b) | 組み合わせ |
| abc174 | [F - Range Set Query](https://atcoder.jp/contests/abc174/tasks/abc174_f) | Binary Indexed Tree |
| abc194 | [E - Mex Min](https://atcoder.jp/contests/abc194/tasks/abc194_e) | しゃくとり法 |
| arc045 | [B - ドキドキデート大作戦高橋君](https://atcoder.jp/contests/arc045/tasks/arc045_b) | 累積和, いもす法 |
| arc043 | [B - 難易度](https://atcoder.jp/contests/arc043/tasks/arc043_b) | 累積和, 二分探索 |
| chokudai_S001 | [K - 辞書順で何番目？](https://atcoder.jp/contests/chokudai_S001/tasks/chokudai_S001_k) | Binary Indexed Tree |
| abc170 | [E - Smart Infants](https://atcoder.jp/contests/abc170/tasks/abc170_e) | Multiset |
| abc177 | [F - I hate Shortest Path Problem](https://atcoder.jp/contests/abc177/tasks/abc177_f) | Multiset |
| colopl2018-qual | [C - すぬけそだて――ごはん――](https://atcoder.jp/contests/colopl2018-qual/tasks/colopl2018_qual_c) | bit 全探索 |
| dwacon6th-prelims | [B - Fusing Slimes](https://atcoder.jp/contests/dwacon6th-prelims/tasks/dwacon6th_prelims_b) | 累積和, 逆元 |
| abc150 | [E - Change a Little Bit](https://atcoder.jp/contests/abc150/tasks/abc150_e) | 組み合わせ |
| abc149 | [F - Surrounded Nodes](https://atcoder.jp/contests/abc149/tasks/abc149_f) | 全方位木 DP, 逆元 |
| dwacon6th-prelims | [C - Cookie Distribution](https://atcoder.jp/contests/dwacon6th-prelims/tasks/dwacon6th_prelims_c) | DP, 組み合わせ |
| dp | [A - Frog 1](https://atcoder.jp/contests/dp/tasks/dp_a) | DP |
| dp | [B - Frog 2](https://atcoder.jp/contests/dp/tasks/dp_b) | DP |
| dp | [C - Vacation](https://atcoder.jp/contests/dp/tasks/dp_c) | DP |
| dp | [D - Knapsack 1](https://atcoder.jp/contests/dp/tasks/dp_d) | DP |
| dp | [E - Knapsack 2](https://atcoder.jp/contests/dp/tasks/dp_e) | DP |
| dp | [F - LCS](https://atcoder.jp/contests/dp/tasks/dp_f) | DP |
| dp | [G - Longest Path](https://atcoder.jp/contests/dp/tasks/dp_g) | DP |
| dp | [H - Grid 1](https://atcoder.jp/contests/dp/tasks/dp_h) | DP |
| dp | [I - Coins](https://atcoder.jp/contests/dp/tasks/dp_i) | DP |
| abc280 | [E - Critical Hit](https://atcoder.jp/contests/abc280/tasks/abc280_e) | DP |
| dp | [J - Sushi](https://atcoder.jp/contests/dp/tasks/dp_j) | DP |
| abc275 | [E - Sugoroku 4](https://atcoder.jp/contests/abc275/tasks/abc275_e) | DP |
| abc263 | [E - Sugoroku 3](https://atcoder.jp/contests/abc263/tasks/abc263_e) | DP |
| tdpc | [J - ボール](https://atcoder.jp/contests/tdpc/tasks/tdpc_ball) | DP |
| past201912-open | [O - 持久戦](https://atcoder.jp/contests/past201912-open/tasks/past201912_o) | DP |
| past201912-open | [A - 2 倍チェック](https://atcoder.jp/contests/past201912-open/tasks/past201912_a) | Misc |
| past201912-open | [M - おまかせ](https://atcoder.jp/contests/past201912-open/tasks/past201912_m) | 二分探索 |
| abc144 | [F - Fork in the Road](https://atcoder.jp/contests/abc144/tasks/abc144_f) | DP |
| dp | [K - Stones](https://atcoder.jp/contests/dp/tasks/dp_k) | DP |
| dp | [M - Candies](https://atcoder.jp/contests/dp/tasks/dp_m) | DP |
| dp | [P - Independent Set](https://atcoder.jp/contests/dp/tasks/dp_p) | DP |
| dp | [Q - Flowers](https://atcoder.jp/contests/dp/tasks/dp_q) | DP, Segment Tree |
| dp | [R - Walk](https://atcoder.jp/contests/dp/tasks/dp_r) | DP |
| dp | [S - Digit Sum](https://atcoder.jp/contests/dp/tasks/dp_s) | 桁 DP |
| dp | [T - Permutation](https://atcoder.jp/contests/dp/tasks/dp_t) | DP |
| dp | [W - Intervals](https://atcoder.jp/contests/dp/tasks/dp_w) | DP, Lazy Segment Tree |
| dp | [X - Tower](https://atcoder.jp/contests/dp/tasks/dp_x) | DP |
| dp | [Y - Grid 2](https://atcoder.jp/contests/dp/tasks/dp_y) | DP, 包除原理 |
| dp | [Z - Frog 3](https://atcoder.jp/contests/dp/tasks/dp_z) | DP, Convex Hull Trick |
| colopl2018-final-open | [C - スペースエクスプローラー高橋君](https://atcoder.jp/contests/colopl2018-final-open/tasks/colopl2018_final_c) | Convex Hull Trick |
| abc098 | [B - Cut and Count](https://atcoder.jp/contests/abc098/tasks/abc098_b) | Misc |
| typical90 | [017 - Crossing Segments（★7）](https://atcoder.jp/contests/typical90/tasks/typical90_q) | Binary Indexed Tree |
| abc209 | [F - Deforestation](https://atcoder.jp/contests/abc209/tasks/abc209_f) | DP |
| abc160 | [F - Distributing Integers](https://atcoder.jp/contests/abc160/tasks/abc160_f) | 全方位木 DP |
## References
- [AtCoder Tags](https://atcoder-tags.herokuapp.com/)
- [AtCoder Problems](https://kenkoooo.com/atcoder/)
- [Atcoder Testcases](https://www.dropbox.com/sh/nx3tnilzqz7df8a/AAAYlTq2tiEHl5hsESw6-yfLa?dl=0)
- [AtCoder Problems の難易度推定について - pepsin-amylase のブログ](https://pepsin-amylase.hatenablog.com/entry/atcoder-problems-difficulty)
- [AtCoder の問題の難易度推定（簡易版） - Qiita](https://qiita.com/trineutron/items/4256c4f8f5eb02025fed)
- [wacchoz/kyopro: AtCoder の問題の推定難易度](https://github.com/wacchoz/kyopro)