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ID 题目 显示标签 隐藏标签 AC / 尝试 难度
8 P6   [System Test] CSP-S1 2023 Adaptation 17 / 69 5
35 P11   [System Test] Three in a row 3 / 7 3
29 P20   [Sleeping Cup #2] Are you ready for it? 7 / 28 5
228 P68   [CSP-S 2019 Day 1] Gray Code 2 / 2 3
229 P69   [CSP-S 2019 Day 1] Bracket Tree 2 / 4 6
230 P70   [CSP-S 2019 Day 1] Cut and Swap 2 / 3 10
231 P71   [CSP-S 2019 Day 2] Guest Treating 2 / 2 8
232 P72   [CSP-S 2019 Day 2] Brute Force Optimization 2 / 54 9
233 P73   [CSP-S 2019 Day 2] Subtree Centroids 3 / 4 10
216 P74   [CSP-S 2020] Julian Calendar 2 / 4 6
217 P75   [CSP-S 2020] Zoo Enlargement 1 / 1 4
218 P76   [CSP-S 2020] Database Optimization 1 / 1 7
219 P77   [CSP-S 2020] Snake Duels 1 / 1 10
38 P78   [CSP-S 2021] Airport programming 2 / 2 6
39 P79   [CSP-S 2021] Starred bracket sequence 2 / 10 7
40 P80   [CSP-S 2021] Palindromic deque 2 / 2 6
41 P81   [CSP-S 2021] Black and white crosses 2 / 9 9
22 P82   [CSP-S 2022] Holiday plan 3 / 4 7
23 P83   [CSP-S 2022] Multiplication game 2 / 5 6
24 P84   [CSP-S 2022] Galaxy war 2 / 5 8
25 P85   [CSP-S 2022] Network test 2 / 7 9
9 P86   [CSP-S 2023] Password lock 4 / 5 3
10 P87   [CSP-S 2023] 2-pop game 2 / 4 6
11 P88   [CSP-S 2023] Structural morphology 2 / 2 6
12 P89   [CSP-S 2023] Tree planting 2 / 16 6
42 P90   [CSP-S 2024] Card duels 7 / 12 2
43 P91   [CSP-S 2024] Overspeed versus cameras 4 / 4 5
44 P92   [CSP-S 2024] Red and blue array 3 / 9 7
45 P93   [CSP-S 2024] Arena championship 4 / 6 10
249 P94   [NOI 2025 Day 1] 机器人 2 / 3 5
250 P95   [NOI 2025 Day 1] 序列变换 2 / 7 9
251 P96   [NOI 2025 Day 1] 数字树 2 / 3 10
252 P97   [NOI 2025 Day 2] 三目运算符 3 / 8 7
253 P98   [NOI 2025 Day 2] 集合 2 / 2 10
254 P99   [NOI 2025 Day 2] 绝对防御 3 / 3 10
220 P162   [NOIP 2020] Sewage Emission 2 / 3 5
221 P163   [NOIP 2020] String Breakdown 2 / 2 8
222 P164   [NOIP 2020] Ball Sorting Puzzle 2 / 3 9
223 P165   [NOIP 2020] K-Dimension Movements 2 / 2 10
224 P166   [NOIP 2021] Number Game 2 / 2 4
225 P167   [NOIP 2021] Popcount-limited Sequence 2 / 2 7
226 P168   [NOIP 2021] Variance Minimization 2 / 3 8
227 P169   [NOIP 2021] Count Valid Moves 2 / 31 10
212 P170   [NOIP 2022] CCF Garden 3 / 4 6
213 P171   [NOIP 2022] 2-pop Game with Stacks 3 / 4 10
214 P172   [NOIP 2022] Barrack Connection Guarding 3 / 3 8
215 P173   [NOIP 2022] One-Versus-One Programming Contest 2 / 4 9
165 P174   [NOIP 2023] "Abandon" Replacement Plan 4 / 5 3
166 P175   [NOIP 2023] True, False, Unknown, and a Certainty Seeker 2 / 3 6
167 P176   [NOIP 2023] "Particular Order" Auto Complete Challenge 2 / 3 9
168 P177   [NOIP 2023] Running Motivation Analysis 2 / 6 8
137 P178   [NOIP 2024] Bit Alignment 4 / 5 7
138 P179   [NOIP 2024] Assignment Counting 3 / 5 6
139 P180   [NOIP 2024] Edge-based Trees 2 / 4 9
140 P181   [NOIP 2024] Deepest LCA 4 / 16 8
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