| 4937 | [Ceoi2016]popeala省选 | 0 |
| 4938 | [Ceoi2016]router省选 | 0 |
| 4935 | [Ceoi2016]Trick省选 | 0 |
| 2841 | [Cerc2005] Knights of the Round Table省选 | 0 |
| 1552 | [Cerc2007]robotic sort省选 | 1 |
| 1438 | [Cerc2008]Business Cards省选 | 0 |
| 2586 | [Cerc2009](False)faces省选 | 0 |
| 2532 | [Cerc2010]Costing Spells省选 | 0 |
| 3078 | [Cerc2011]Racing Car Trial省选 | 0 |
| 3081 | [Cerc2011]Strange Regulations省选 | 0 |
| 3169 | [Cerc2012]Conservation省选 | 0 |
| 4233 | [Cerc2013]Captain Obvious and the Rabbit-Man省选 | 0 |
| 4421 | [Cerc2015] Digit Division省选 | 0 |
| 4422 | [Cerc2015]Cow Confinement省选 | 0 |
| 4452 | [Cerc2015]Export Estimate省选 | 0 |
| 4451 | [Cerc2015]Frightful Formula省选 | 0 |
| 4432 | [Cerc2015]Greenhouse Growth省选 | 0 |
| 4433 | [Cerc2015]Hovering Hornet省选 | 0 |
| 4434 | [Cerc2015]Ice Igloos省选 | 0 |
| 4435 | [Cerc2015]Juice Junctions省选 | 0 |
| 4436 | [Cerc2015]Kernel Knights省选 | 0 |
| 4437 | [Cerc2015]Looping Labyrinth省选 | 0 |
| 4787 | [Cerc2016]Appearance Analysis省选 | 0 |
| 4788 | [CERC2016]Bipartite Blanket省选 | 0 |
| 4789 | [CERC2016]Convex Contour省选 | 0 |
| 4790 | [CERC2016]Dancing Disks省选 | 0 |
| 4791 | [CERC2016]Free Figurines省选 | 0 |
| 4792 | [CERC2016]Geohash Grid省选 | 0 |
| 4793 | [CERC2016]Hangar Hurdles省选 | 0 |
| 4794 | [CERC2016]Invisible Integers省选 | 0 |
| 4795 | [CERC2016]Jazz Journey省选 | 0 |
| 4796 | [CERC2016]Key Knocking省选 | 0 |
| 3221 | [Codechef FEB13] Obserbing the tree树上询问省选 | 0 |
| 3509 | [CodeChef] COUNTARI省选 | 0 |
| 3625 | [Codeforces Round #250]小朋友和二叉树省选 | 0 |
| 2777 | [Codejam2010]Number Game省选 | 0 |
| 2618 | [Cqoi2006]凸多边形省选 | 0 |
| 2222 | [Cqoi2006]猜数游戏省选 | 0 |
| 1258 | [CQOI2007]三角形tri省选 | 0 |
| 1257 | [CQOI2007]余数之和省选 | 7 |
| 1260 | [CQOI2007]涂色paint
省选 | 2 |
| 1259 | [CQOI2007]矩形rect省选 | 0 |
| 3293 | [Cqoi2011]分金币省选 | 0 |
| 3295 | [Cqoi2011]动态逆序对省选 | 12 |
| 3294 | [Cqoi2011]放棋子省选 | 1 |
| 2668 | [cqoi2012]交换棋子省选 | 0 |
| 2669 | [cqoi2012]局部极小值省选 | 0 |
| 2667 | [cqoi2012]模拟工厂省选 | 0 |
| 2666 | [cqoi2012]组装省选 | 0 |
| 2665 | [cqoi2012]编号省选 | 0 |
