ID 题目 显示标签 隐藏标签 AC / 尝试 难度
201 201   [User Entry] 命中注定的抉择 4 / 4 6
202 202   [User Entry] 最小价值最大树 3 / 3 6
203 203   [User Entry] 最短路 4 / 5 6
204 204   [2026 January TFOJ Easy Round] Supermarket Promotion 1 4 / 8 1
205 205   [2026 January TFOJ Easy Round] Seesaw Management 2 4 / 6 2
206 206   [2026 January TFOJ Easy Round] Simple Range Game 4 / 18 7
207 207   [2026 January TFOJ Easy Round] Interval Product 4 / 6 3
208 208   [Extra Contest #5] 2025 CMOP (A) Day 1 3 / 10 10
209 209   [Sleeping Cup #8 / CFCOI Collection 1] Fibonacci Equations 19 / 66 3
210 210   [Sleeping Cup #8 / CFCOI Collection 1] Super Laser Gun 12 / 115 4
211 211   [Sleeping Cup #8 / CFCOI Collection 1] Balanced Trees 11 / 33 6
212 212   [Sleeping Cup #8 / CFCOI Collection 1] Sorrowful Substrings 12 / 38 6
213 213   [Sleeping Cup #8 / CFCOI Collection 1] Extraordinary TSP Problem 10 / 31 6
214 214   [Sleeping Cup #8 / CFCOI Collection 1] Trivial Array Queries 10 / 85 8
215 215   [Sleeping Cup #8 / CFCOI Collection 1] Returning Brooms 6 / 26 8
216 216   [Extra Contest #6 / CFCOI Collection 1 Appendix] Unique Laser Gun 5 / 36 6
217 217   [CSP-S 2025] Department Division 3 / 3 6
218 218   [CSP-S 2025] Traffic Restoration 3 / 3 6
219 219   [CSP-S 2025] Homonym Creation 3 / 7 7
220 220   [CSP-S 2025] Manipulated Admission 2 / 2 8
221 221   [NOIP 2025] Candy Store 3 / 4 5
222 222   [NOIP 2025] Clearance Sale 3 / 9 7
223 223   [NOIP 2025] MEX Sum Challenge on a Tree 2 / 3 10
224 224   [NOIP 2025] Length-Limited Maximum Interval Sum Query 3 / 5 8
225 225   [User Entry] 数据结构 7 / 47 8
226 226   [User Entry] The Turtle 3 / 4 1
227 227   [User Entry] Road Trip 3 / 4 4
228 228   [User Entry] Huge Snack Knapsack 3 / 4 7
229 229   [User Entry] Optimal Employments 4 / 5 7
230 230   [User Entry] Even More Optimal Employments 4 / 6 8
231 231   [Sleeping Cup #9] Minimum-Maximum Compounds 10 / 47 4
232 232   [Sleeping Cup #9] Savings Challenge 8 / 58 6
233 233   [Sleeping Cup #9] 2048: Python vs. OOM 7 / 71 8
234 234   [Sleeping Cup #9] The Zero Point 8 / 30 6
235 235   [Sleeping Cup #10] Problem Entries 10 / 19 4
236 236   [Sleeping Cup #10] Trivial Script Interpretation 8 / 53 2
237 237   [Sleeping Cup #10] Signal Traversal 8 / 14 1
238 238   [Sleeping Cup #10] Population 8 / 13 1
239 239   [CFCOI Collection 2] Free Grid 5 / 51 8
240 240   [CFCOI Collection 2] DAG Construction 4 / 8 6
241 241   [CFCOI Collection 2] Tangram Numbers 4 / 36 6
242 242   [CFCOI Collection 2] Tree Deletion 4 / 4 5
243 243   [CFCOI Collection 2] Guessing Binary String 5 / 14 3
244 244   [CFCOI Collection 2] Not a Number Theoretical Blocking Problem 5 / 6 5
245 245   [CFCOI Collection 2] Square Sum 5 / 5 2
246 246   [CFCOI Collection 2] Super Terrain Transformation Simulator 4 / 4 5
247 247   [CFCOI Collection 2] Integral IoU Sum 5 / 7 4
248 248   [CFCOI Collection 2] Sequence Crypto 4 / 14 4
249 249   [2026 February TFOJ Normal Round] Seesaw Management 1 2 / 2 2
250 250   [2026 February TFOJ Normal Round] Digit Equation 2 / 2 5
251 251   [2026 February TFOJ Normal Round] Minimum Spanning Tree 2 / 2 6
252 252   [2026 February TFOJ Normal Round] Charity Auctions 2 / 2 7
253 253   [User Entry] 乘积 2 / 12 1
254 254   [User Entry] 倍数调整 3 / 15 3
255 255   [User Entry] 行走 2 / 29 4
256 256   [User Entry] 构造题 3 / 29 6
257 257   [2026 March TFOJ Easy Round] Addition 1 6 / 6 1
258 258   [2026 March TFOJ Easy Round] Watermelon Purchase 1 4 / 4 1
259 259   [2026 March TFOJ Easy Round] River Drifting 4 / 4 1
260 260   [2026 March TFOJ Easy Round] Linear Geometry 4 / 4 1
261 261   [2026 March TFOJ Easy Round] Watermelon Purchase 2 4 / 4 2
262 262   [2026 March TFOJ Easy Round] Maintenance 4 / 4 1
263 263   [2026 March TFOJ Easy Round] Watermelon Purchase 3 4 / 4 2
264 264   [2026 March TFOJ Easy Round] Picking Candy 4 / 4 4
265 265   [Extra Contest #7] More 2048: Python vs. More OOM 5 / 11 8
266 266   [Extra Contest #8] Prime Triples 2 / 6 3
267 267   [Sleeping Cup #11] Rating System 15 / 96 3
268 268   [Sleeping Cup #11] Closed Chaining Hash Table 13 / 21 3
269 269   [Sleeping Cup #11] Xor Knapsack 16 / 25 3
270 270   [Sleeping Cup #11] The Lost Voucher 12 / 28 3
271 271   [Sleeping Cup #11] Topology-Aware Step-By-Step Sorting 3 / 42 7
272 272   [Sleeping Cup #11] Backward Repeats 6 / 25 7
273 273   [Sleeping Cup #11] Interstellar JavaScript Seminar 3 / 8 7
274 274   [CFCOI Collection 3] Lowbit Sum 2 / 2 4
275 275   [CFCOI Collection 3] Astronomical Observation 2 / 7 7
276 276   [CFCOI Collection 3] Minister Versus Elephant 2 / 2 7
277 277   [CFCOI Collection 3] Degree Variance 2 / 2 8
278 278   [2026 April TFOJ Easy Round] The Previous One 2 / 2 1
279 279   [2026 April TFOJ Easy Round] Fireworks 2 2 / 2 2
280 280   [2026 April TFOJ Easy Round] Blocks 2 / 2 3
281 281   [2026 May TFOJ Easy Round] Addition 2 2 / 2 2
282 282   [2026 May TFOJ Easy Round] Extractions 2 / 2 8
283 283   [2026 May TFOJ Easy Round] Walkthrough 1 2 / 2 3
284 284   [2026 June TFOJ Normal Round] Written Examination 2 / 2 6
285 285   [2026 June TFOJ Normal Round] Ladies And Gentlemen 2 / 2 2
286 286   [2026 June TFOJ Normal Round] Watermelon Purchase 4 2 / 2 2
287 287   [2026 June TFOJ Normal Round] CTFPC 2 2 / 2 3
288 288   [2026 June TFOJ Normal Round] Fibonacci Decomposition 2 / 2 4
289 289   [2026 July TFOJ Normal Round] Product 2 / 3 2
290 290   [2026 July TFOJ Normal Round] Elevator 2 / 3 3
291 291   [2026 July TFOJ Normal Round] Walkthrough 2 2 / 3 3
292 292   [2026 July TFOJ Normal Round] Supermarket Promotion 2 2 / 3 4
293 293   [2026 July TFOJ Normal Round] Junior Arithmetic 2 / 5 1
294 294   [NOI Winter Camp 2026] 二进制 5 / 9 7
295 295   [NOI Winter Camp 2026] 猫和老鼠 3 / 3 10
296 296   [NOI Winter Camp 2026] 画树 2 / 2 10
297 297   [APIO 2026 China Region] 上升 4 / 15 9
298 298   [APIO 2026 China Region] 蛋糕 4 / 6 8
299 299   [APIO 2026 China Region] 集宝 3 / 3 10
300 300   [Sleeping Cup #12] CSP-J1/S1 2026 Mock Test 1 / 23 10