| ID | 题目 显示标签 隐藏标签 | AC / 尝试 | 难度 | |
|---|---|---|---|---|
| 4464 | IOI19991A HIDDEN CODES | 0 / 0 | (无) | |
| 4465 | IOI19991B LITTLE SHOP OF FLOWERS | 0 / 0 | (无) | |
| 4466 | IOI19991C UNDERGROUND CITY | 0 / 0 | (无) | |
| 4467 | IOI19992A FLATTEN | 0 / 0 | (无) | |
| 4468 | IOI19992B A STRIP OF LAND | 0 / 0 | (无) | |
| 4469 | IOI19992C TRAFFIC LIGHTS | 0 / 0 | (无) | |
| 4288 | NOI19991A 01串 | 0 / 0 | 4 | |
| 4289 | NOI19991B 钉子与小球 | 0 / 0 | 5 | |
| 4290 | NOI19992A 棋盘分割 | 0 / 0 | 5 | |
| 4291 | NOI19992B 最优连通子集 | 0 / 0 | 3 | |
| 222 | 222 花店橱窗设计 | 0 / 5 | 10 | |
| 5073 | P2754 [CTSC1999] 家园 / 星际转移问题 | 0 / 0 | (无) | |
| 4689 | 4689 [NOIP1999 普及组] Cantor 表 | 23 / 40 | 3 | |
| 4749 | 4749 [NOIP1999 普及组] 导弹拦截 | 8 / 25 | 7 |