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WA了n次之后突然ac,我痛哭流涕！！！矩阵相乘写错了，取模得 相乘一个数，取一次摸，如果全加起来在取模，估计就越界了！后来把sum值定义成——int64，就过了。。。。囧~~~ Followed by: Post your reply here: |
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