| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 280 | A2100 【例】有向图的拓扑序列 | 7 / 18 | 8 | |
| 281 | A2105 神经网络 | 4 / 4 | 7 | |
| 282 | A2106 【例】车站分级 | 5 / 11 | 9 | |
| 276 | A2110 【例】Dijkstra求最短路 I | 5 / 15 | 8 | |
| 277 | A2115 【例】Dijkstra求最短路 II | 4 / 13 | 9 | |
| 283 | A2118 奶牛回家 | 4 / 7 | 10 | |
| 285 | A2129 【例】spfa求最短路 | 6 / 14 | 8 | |
| 286 | A2133 【例】选择最佳线路 | 5 / 11 | 9 | |
| 291 | A2147 【例】Floyd求最短路 | 5 / 8 | 10 | |
| 292 | A2148 最短距离总和 | 4 / 12 | 9 | |
| 293 | A2149 牛奶工厂 | 9 / 16 | 5 | |
| 296 | A2158 【例】Prim算法求最小生成树 | 5 / 8 | 10 | |
| 297 | A2159 最短网络 | 5 / 5 | 10 | |
| 298 | A2162 新的开始 | 4 / 9 | 9 | |
| 299 | A2167 【例】Kruskal算法求最小生成树 | 6 / 9 | 9 | |
| 300 | A2168 局域网 | 6 / 6 | 10 | |
| 301 | A2170 【例】联络员 | 5 / 8 | 10 | |
| 303 | A3150 【例】染色法判定二分图 | 5 / 7 | 5 | |
| 395 | A3151 关押罪犯 | 4 / 10 | 9 | |
| 351 | A3155 【例】二分图最大匹配 | 5 / 8 | 10 | |
| 352 | A3160 【例】棋盘覆盖 | 5 / 9 | 9 | |
| 353 | A3161 車的放置 | 3 / 4 | 10 | |
| 354 | A3165 【例】机器任务 | 5 / 8 | 10 | |
| 355 | A3166 骑士放置 | 3 / 3 | 10 | |
| 364 | A3180 【例】排队布局 | 2 / 10 | 10 | |
| 365 | A3185 【例】糖果 | 3 / 4 | 6 | |
| 366 | A3190 区间 | 2 / 10 | 10 | |
| 348 | A3195 【例】祖孙询问 | 5 / 10 | 9 | |
| 349 | A3200 【例】受欢迎的牛 | 5 / 9 | 7 | |
| 1898 | A3279 银河 | 2 / 8 | 7 | |
| 392 | A3415 【例】装满的油箱 | 0 / 0 | (None) | |
| 405 | A3426 可达性统计 | 4 / 8 | 10 | |
| 2773 | NOIP1025 [NOIP 2018 普及组] 对称二叉树 | 1 / 1 | 10 | |
| 3130 | 3130 Planets Queries II | 0 / 0 | (None) | |
| 3139 | 3139 Counting Rooms | 0 / 0 | (None) | |
| 3140 | 3140 Labyrinth | 0 / 0 | (None) | |
| 3141 | 3141 Monsters | 0 / 0 | (None) | |
| 3142 | 3142 Flight Discount | 0 / 0 | (None) | |
| 3143 | 3143 Flight Routes | 0 / 0 | (None) | |
| 3144 | 3144 Cycle Finding | 0 / 0 | (None) | |
| 3145 | 3145 Investigation | 0 / 0 | (None) | |
| 3189 | 3189 Building Roads | 0 / 0 | (None) | |
| 3190 | 3190 Message Route | 0 / 0 | (None) | |
| 3191 | 3191 Building Teams | 0 / 0 | (None) | |
| 3192 | 3192 Round Trip | 0 / 0 | (None) | |
| 3194 | 3194 Shortest Routes I | 0 / 0 | (None) | |
| 3195 | 3195 Shortest Routes II | 0 / 0 | (None) | |
| 3196 | 3196 High Score | 0 / 0 | (None) | |
| 3198 | 3198 Road Reparation | 0 / 0 | (None) | |
| 3199 | 3199 Road Construction | 0 / 0 | (None) |