ID 题目 显示标签 隐藏标签 AC / 尝试 难度
5 5   [System Test] Double Quine 5 / 25 6
10 10   [System Test] A Tough Binary Search 3 / 28 2
14 14   [System Test] The wrong bit 9 / 105 6
57 57   [KBC005A] Aircraft 5 / 9 1
58 58   [KBC005B] Sheep 4 / 12 2
59 59   [KBC005C] Segment 4 / 11 2
60 60   [KBC005D] Article 3 / 11 4
61 61   [KBC005E] Count 2 3 / 6 6
62 62   [KBC005F] Count 3 3 / 5 6
63 63   [KBC005G] Bottles 3 / 13 8
64 64   [KBC005Ex] Standings 3 / 20 8
94 94   [NOI 2025 Day 1] 机器人 3 / 4 5
95 95   [NOI 2025 Day 1] 序列变换 3 / 8 8
96 96   [NOI 2025 Day 1] 数字树 3 / 4 10
97 97   [NOI 2025 Day 2] 三目运算符 3 / 8 7
98 98   [NOI 2025 Day 2] 集合 3 / 3 10
99 99   [NOI 2025 Day 2] 绝对防御 3 / 3 10
100 100   [Sleeping Cup #3] Grammar quiz 6 / 51 3
101 101   [Sleeping Cup #3] Not a median problem 6 / 78 5
102 102   [Sleeping Cup #3] Missing circle 8 / 32 1
103 103   [Sleeping Cup #3] Fast permutation transform 4 / 8 8
104 104   [Sleeping Cup #4] Football Loser 10 / 43 2
105 105   [Sleeping Cup #4] Tangent Dancer 7 / 24 2
106 106   [Sleeping Cup #4] Lottery Cheater 5 / 18 4
107 107   [Sleeping Cup #4] Factorial Master 5 / 18 7
108 108   [Sleeping Cup #4] Proof Writer 4 / 12 7
109 109   [Extra Contest #1] Polygon Areas 3 / 4 1
110 110   [Extra Contest #2] Sleeping Bear's Honey 3+ 3 / 25 9
111 111   [TFXOI Round 1] 我欲于群山之巅 4 / 8 7
112 112   [TFXOI Round 1] 过往与现实之历史 4 / 5 7
113 113   [TFXOI Round 1] 毁灭日 4 / 10 10
114 114   [TFXOI Round 1] 创世纪 4 / 12 8
155 155   [Sleeping Cup #5 / CTFPC-4th] Soda 5 / 48 6
156 156   [Sleeping Cup #5 / CTFPC-4th] Square Difference 12 / 52 2
157 157   [Sleeping Cup #5 / CTFPC-4th] Match 10 / 27 2
158 158   [Sleeping Cup #5 / CTFPC-4th] Binary Operator 7 / 18 4
159 159   [Sleeping Cup #5 / CTFPC-4th] Record 5 / 22 6
160 160   [Sleeping Cup #5 / CTFPC-4th] Inversion 5 / 14 6
161 161   [Sleeping Cup #5 / CTFPC-4th] Lost Surface 4 / 118 8
182 182   [Sleeping Cup #6] CSP-J1/S1 2025 Mock Test 5 / 38 10
183 183   [Extra Contest #3] Exclamation Covering 6 / 109 9
184 184   [Extra Contest #4] Factorial Grandmaster 2 / 34 9
189 189   [User Entry] 完美的平方数 1 / 2 8
190 190   [User Entry] Program of atom(x) 2027 1 / 2 8
191 191   [User Entry] 移民计划 1 / 2 5
192 192   [User Entry] 01-strings and 01-subsequences 4 / 13 2
193 193   [User Entry] Magic Segment Tree 7 / 35 7
194 194   [User Entry] A trip to Macao 1 / 1 7
195 195   [User Entry] 小 L 买彩票 2 / 3 7
196 196   [Sleeping Cup #7] League Preparation 34 / 101 1
197 197   [Sleeping Cup #7] Rice Cake Consumption 23 / 76 2
198 198   [Sleeping Cup #7] Garbage Collection 4 / 98 8
199 199   [Sleeping Cup #7] Back Translation 4 / 56 7
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
208 208   [Extra Contest #5] 2025 CMOP (A) Day 1 3 / 10 10
209 209   [Sleeping Cup #8 / CFCOI Collection 1] Fibonacci Equations 17 / 62 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 / 30 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 / 35 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 2 / 2 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 2 / 3 7
223 223   [NOIP 2025] MEX Sum Challenge on a Tree 2 / 3 10
224 224   [NOIP 2025] Length-Limited Maximum Interval Sum Query 2 / 3 8
225 225   [User Entry] 数据结构 8 / 41 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 3 / 4 7
230 230   [User Entry] Even More Optimal Employments 3 / 3 8
235 235   [Sleeping Cup #10] Problem Entries 9 / 18 4
236 236   [Sleeping Cup #10] Trivial Script Interpretation 7 / 52 2
237 237   [Sleeping Cup #10] Signal Traversal 7 / 13 1
238 238   [Sleeping Cup #10] Population 7 / 12 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 4 / 4 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 / 12 4
257 257   [2026 March TFOJ Easy Round] Addition 2 / 2 1
258 258   [2026 March TFOJ Easy Round] Watermelon Purchase 1 2 / 2 1
259 259   [2026 March TFOJ Easy Round] River Drifting 2 / 2 1
260 260   [2026 March TFOJ Easy Round] Linear Geometry 2 / 2 1
261 261   [2026 March TFOJ Easy Round] Watermelon Purchase 2 2 / 2 2
262 262   [2026 March TFOJ Easy Round] Maintenance 2 / 2 1
263 263   [2026 March TFOJ Easy Round] Watermelon Purchase 3 2 / 2 2