看上去好像很简单，就是【循环n次，每次从m(i，每次会不同)里剔除一个k(i) (空) (haitao [1] 昨天 14:30) 】
也没有考虑 删除后留下的空位 的问题，

但是结果却是对的，说明已经考虑了空位


间\人
________1_______2_______3_______4_______5_______6_______7_______8_______9_______10______11______12______13______14______15______16______17______18______19______20______
1_______________________________________________________________________________________________________________________________________________________________________
2_______________________3:3_____1:1_____3:3_____5:5_____7:7_____1:1_____3:3_____5:5_____7:7_____9:9_____11:11___13:13___15:15___1:1_____3:3_____5:5_____7:7_____9:9_____
3_______________________2:2_____1:1_____4:4_____1:1_____4:4_____7:7_____1:1_____4:4_____7:7_____10:10___13:13___2:2_____5:5_____8:8_____11:11___14:14___17:17___20:20___
4_______________________2:2_____2:2_____1:1_____5:5_____2:2_____6:6_____1:1_____5:5_____9:9_____1:1_____5:5_____9:9_____13:13___1:1_____5:5_____9:9_____13:13___17:17___
5_______________________1:1_____2:2_____2:2_____1:1_____6:6_____3:3_____8:8_____3:3_____8:8_____1:1_____6:6_____11:11___1:1_____6:6_____11:11___16:16___2:2_____7:7_____
6_______________________1:1_____3:3_____4:4_____4:4_____3:3_____1:1_____7:7_____3:3_____9:9_____3:3_____9:9_____1:1_____7:7_____13:13___2:2_____8:8_____14:14___20:20___
7_______________________3:3_____2:2_____4:4_____5:5_____5:5_____4:4_____2:2_____9:9_____5:5_____12:12___6:6_____13:13___5:5_____12:12___2:2_____9:9_____16:16___3:3_____
8_______________________3:3_____3:3_____1:1_____3:3_____4:4_____4:4_____3:3_____1:1_____9:9_____5:5_____13:13___7:7_____15:15___7:7_____15:15___5:5_____13:13___1:1_____
9_______________________2:2_____3:3_____2:2_____5:5_____7:7_____8:8_____8:8_____7:7_____5:5_____2:2_____11:11___6:6_____15:15___8:8_____17:17___8:8_____17:17___6:6_____
10______________________2:2_____4:4_____4:4_____2:2_____5:5_____7:7_____8:8_____8:8_____7:7_____5:5_____2:2_____12:12___7:7_____1:1_____11:11___3:3_____13:13___3:3_____
11______________________1:1_____4:4_____5:5_____4:4_____1:1_____4:4_____6:6_____7:7_____7:7_____6:6_____4:4_____1:1_____12:12___7:7_____1:1_____12:12___4:4_____15:15___
12______________________1:1_____1:1_____3:3_____3:3_____1:1_____5:5_____8:8_____10:10___11:11___11:11___10:10___8:8_____5:5_____1:1_____13:13___7:7_____19:19___11:11___
13______________________3:3_____4:4_____2:2_____3:3_____2:2_____7:7_____2:2_____5:5_____7:7_____8:8_____8:8_____7:7_____5:5_____2:2_____15:15___10:10___4:4_____17:17___
14______________________3:3_____1:1_____5:5_____1:1_____1:1_____7:7_____3:3_____7:7_____10:10___12:12___13:13___13:13___12:12___10:10___7:7_____3:3_____17:17___11:11___
15______________________2:2_____1:1_____1:1_____4:4_____5:5_____4:4_____1:1_____6:6_____10:10___1:1_____3:3_____4:4_____4:4_____3:3_____1:1_____16:16___12:12___7:7_____
16______________________2:2_____2:2_____3:3_____1:1_____3:3_____3:3_____1:1_____7:7_____1:1_____5:5_____8:8_____10:10___11:11___11:11___10:10___8:8_____5:5_____1:1_____
17______________________1:1_____2:2_____4:4_____3:3_____6:6_____7:7_____6:6_____3:3_____9:9_____2:2_____6:6_____9:9_____11:11___12:12___12:12___11:11___9:9_____6:6_____