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假设台上有n位小哥哥小姐姐,将n个人进行编号1-n个人,所以现在我想在n个人中间挑出来m个人来排队,请大声告诉我所有的情况。
5 3
1 2 3
1 2 4
1 2 5
1 3 4
1 3 5
1 4 5
2 3 4
2 3 5
2 4 5
3 4 5
n>0 ,
0≤m≤n,
n+(n−m)≤25
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