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题目有点恶,我开始没太看明白,以为只是m * n就可以了,但是好像不是.当m * n 为偶数时,直接可以走横纵线从头走一遍,但是为奇数时就要走一次斜线,所以长度有些变化. Followed by: Post your reply here: |
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