ID Problem Show tags Hide tags AC / Tried Difficulty
9231 P9869   [NOIP2023] 三值逻辑 1 / 1 6
9259 P9870   [NOIP2023] 双序列拓展 0 / 0 8
9260 P9871   [NOIP2023] 天天爱打卡 1 / 1 8
9250 P9872   [EC Final 2021] DFS Order 1 / 1 3
9251 P9873   [EC Final 2021] Beautiful String 0 / 0 7
9252 P9874   [EC Final 2021] String-dle Count 0 / 0 8
9253 P9875   [EC Final 2021] Two Walls 0 / 0 8
9254 P9876   [EC Final 2021] Prof. Pang and Poker 0 / 0 7
9255 P9877   [EC Final 2021] Vacation 0 / 0 9
9256 P9878   [EC Final 2021] Check Pattern is Bad 0 / 0 9
9244 P9879   [EC Final 2021] Check Pattern is Good 0 / 0 8
9245 P9880   [EC Final 2021] Future Coder 0 / 0 3
9246 P9881   [EC Final 2021] Elden Ring 0 / 0 7
9247 P9882   [EC Final 2021] Vision Test 0 / 0 9
9248 P9883   [EC Final 2021] Fenwick Tree 0 / 0 6
9249 P9884   [EC Final 2021] Prof. Pang and Ants 0 / 0 9
9267 P9885   [ICPC 2018 Qingdao R] Sequence and Sequence 0 / 0 9
9271 P9886   [ICPC 2018 Qingdao R] Kawa Exam 0 / 0 8
9272 P9887   [ICPC 2018 Qingdao R] Flippy Sequence 0 / 0 5
9273 P9888   [ICPC 2018 Qingdao R] Magic Multiplication 0 / 0 6
9274 P9889   [ICPC 2018 Qingdao R] Plants vs. Zombies 0 / 0 6
9275 P9890   [ICPC 2018 Qingdao R] Tournament 0 / 0 7
9276 P9891   [ICPC 2018 Qingdao R] Repair the Artwork 0 / 0 8
9277 P9892   [ICPC 2018 Qingdao R] Mirror 0 / 0 9
9278 P9893   [ICPC 2018 Qingdao R] Soldier Game 0 / 0 8
9279 P9894   [ICPC 2018 Qingdao R] Books 0 / 0 5
9280 P9895   [ICPC 2018 Qingdao R] Airdrop 0 / 0 8
9281 P9896   [ICPC 2018 Qingdao R] Sub-cycle Graph 0 / 0 8
9282 P9897   [ICPC 2018 Qingdao R] Function and Function 0 / 0 3
9262 P9903   [COCI 2023/2024 #1] Sudoku 0 / 0 3
9263 P9904   [COCI 2023/2024 #1] Labirint 0 / 0 6
9289 P9905   [COCI 2023/2024 #1] AN2DL 0 / 0 6
9290 P9906   [COCI 2023/2024 #1] Kocke 0 / 0 7
9316 P9908   [COCI 2023/2024 #2] Pahuljice 0 / 0 3
9317 P9909   [COCI 2023/2024 #2] Pingvin 0 / 0 3
9318 P9910   [COCI 2023/2024 #2] Dizalo 0 / 0 8
9319 P9911   [COCI 2023/2024 #2] Kuglice 0 / 0 6
9320 P9912   [COCI 2023/2024 #2] Zatopljenje 0 / 0 6
9170 P9913   「RiOI-03」water problem 1 / 1 5
9166 P9914   「RiOI-03」匀速相遇 0 / 0 5
9159 P9915   「RiOI-03」3-2 0 / 0 6
9168 P9916   「RiOI-03」Just a Q. (Easy ver.) 0 / 0 8
9173 P9917   「RiOI-03」网格 0 / 0 8
9188 P9918   「RiOI-03」Just a Q. (Hard ver.) 0 / 0 8
9169 P9919   「RiOI-03」A Journey to the Moonlight 0 / 0 9
9303 P9926   [NFLSPC #6] 所以 k 小生成树怎么做? 0 / 0 9
9305 P9928   [NFLSPC #6] 来点不那么魔怔的题面 0 / 0 5
9306 P9929   [NFLSPC #6] 挑战大数因子分解 0 / 0 7
9307 P9930   [NFLSPC #6] 1064 病毒 0 / 0 5
9308 P9931   [NFLSPC #6] 挑战停机问题 0 / 0 8
9309 P9932   [NFLSPC #6] 树 0 / 0 9
9310 P9933   [NFLSPC #6] 9.pop_book(); 0 / 0 8
9311 P9934   [NFLSPC #6] 绝不能忘记的事…… 0 / 0 7
9312 P9935   [NFLSPC #6] 啊,忘记了。 0 / 0 8
9313 P9936   [NFLSPC #6] 等差数列 0 / 0 6
9322 P9937   [USACO21OPEN] Acowdemia I B 0 / 0 3
9323 P9938   [USACO21OPEN] Acowdemia II B 0 / 0 3
9324 P9939   [USACO21OPEN] Acowdemia III B 0 / 0 5
9325 P9940   [USACO21JAN] Uddered but not Herd B 0 / 0 1
9326 P9941   [USACO21JAN] Even More Odd Photos B 0 / 0 3
9327 P9942   [USACO21JAN] Just Stalling B 0 / 0 3
9328 P9943   [USACO21FEB] Year of the Cow B 0 / 0 3
9329 P9944   [USACO21FEB] Comfortable Cows B 0 / 0 3
9330 P9945   [USACO21FEB] Clockwise Fence B 0 / 0 3
9331 P9946   [USACO20JAN] Word Processor B 0 / 0 1
9332 P9947   [USACO20JAN] Photoshoot B 0 / 0 3
9333 P9948   [USACO20JAN] Race B 0 / 0 5
9347 P9949   [USACO20FEB] Triangles B 0 / 0 3
9348 P9950   [USACO20FEB] Mad Scientist B 0 / 0 1
9349 P9951   [USACO20FEB] Swapity Swap B 0 / 0 5
9350 P9952   [USACO20OPEN] Social Distancing I B 0 / 0 5
9351 P9953   [USACO20OPEN] Social Distancing II B 0 / 0 3
9352 P9954   [USACO20OPEN] Cowntact Tracing B 0 / 0 5
9353 P9955   [USACO20DEC] Do You Know Your ABCs? B 0 / 0 1
9354 P9956   [USACO20DEC] Daisy Chains B 0 / 0 3
9355 P9957   [USACO20DEC] Stuck in a Rut B 0 / 0 5
9356 P9958   [USACO19JAN] Shell Game B 0 / 0 3
9357 P9959   [USACO19JAN] Sleepy Cow Sorting B 0 / 0 3
9358 P9960   [USACO19JAN] Guess the Animal B 0 / 0 3
9382 P9974   [USACO23DEC] Candy Cane Feast B 0 / 0 5
9384 P9975   [USACO23DEC] Cowntact Tracing 2 B 0 / 0 5
9394 P9976   [USACO23DEC] Farmer John Actually Farms B 0 / 0 5
9395 P9977   [USACO23DEC] Bovine Acrobatics S 0 / 0 6
9396 P9978   [USACO23DEC] Cycle Correspondence S 0 / 0 5
9397 P9979   [USACO23DEC] Target Practice S 0 / 0 6
9398 P9980   [USACO23DEC] Flight Routes G 0 / 0 6
9399 P9981   [USACO23DEC] Minimum Longest Trip G 0 / 0 7
9401 P9982   [USACO23DEC] Haybale Distribution G 0 / 0 6
9402 P9983   [USACO23DEC] Cowntact Tracing P 0 / 0 9
9403 P9984   [USACO23DEC] A Graph Problem P 0 / 0 8
9404 P9985   [USACO23DEC] Train Scheduling P 0 / 0 8
9167 P9986   [Ynoi2079] r2pspc 0 / 0 9
9157 P9987   [Ynoi2079] riapq 0 / 0 9
9164 P9988   [Ynoi2079] 2stmo 0 / 0 9
9336 P9989   [Ynoi Easy Round 2023] TEST_69 0 / 0 8
9338 P9990   [Ynoi Easy Round 2023] TEST_90 0 / 0 8
9186 P9991   [Ynoi Easy Round 2023] TEST_107 0 / 0 8
9187 P9992   [Ynoi Easy Round 2024] TEST_130 0 / 0 8
9162 P9993   [Ynoi Easy Round 2024] TEST_133 0 / 0 8
9342 P9994   [Ynoi Easy Round 2024] TEST_132 0 / 0 8

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