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从m中选n个数出来按条件组合 1、考虑顺序和不考虑顺序 2、一个组合中,允许有重复元素和不允许有重复元素 如从0,1,2中选2个数 1、考虑顺序允许重复:[0,0],[0,1],[0,2],[1,1],[1,2],[2,2],[2,1],[2,0],[1,0] 2、考虑顺序不允许重复:[0,1],[0,2],[1,2],[2,1],[2,0],[1,0] 3、不考虑顺序允许重复:[0,0],[0,1],[0,2],[1,1],[1,2],[2,2] 4、不考虑顺序不允许重复:[0,1],[0,2],[1,2]
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从m中选n个数出来按条件组合
1、考虑顺序和不考虑顺序
2、一个组合中,允许有重复元素和不允许有重复元素
如从0,1,2中选2个数
1、考虑顺序允许重复:[0,0],[0,1],[0,2],[1,1],[1,2],[2,2],[2,1],[2,0],[1,0]
2、考虑顺序不允许重复:[0,1],[0,2],[1,2],[2,1],[2,0],[1,0]
3、不考虑顺序允许重复:[0,0],[0,1],[0,2],[1,1],[1,2],[2,2]
4、不考虑顺序不允许重复:[0,1],[0,2],[1,2]
The text was updated successfully, but these errors were encountered: