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始终和样例不一样可以看看是不是这个问题你们的输出可能是： 1 2 2 -1 如果是这个输出说明你们没有注意到取模的问题，所以最后的答案应该为 (ans[i][j]+mod)%mod，这样就跟样例一样了，但是数据很水，所以没这样写也能A。。。 Followed by: Post your reply here: |
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