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用随机化算法对样例做了个暴力测试，两个样例都输出Yes，感觉这题的标准解法是错的标准解法是通过计算p（i，v）也就是v是生成的第i个数的概率，最后直接合并i=1,2,3，……k的所有情况，实际上这些情况之间是不独立的，显然不能直接累加起来。 Followed by: Post your reply here: |
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