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wa的注意了wa的注意了,不要通过判断a[0]=0来确定是否需要反转a[0],这样是错的 如下面的情况: 0 0 1 0 .....后面全是0, 这时如果反转a[0]需要2步,不翻转a[0]需要12步(不要问我是怎么知道的,因为这个wa了n次), Followed by: Post your reply here: |
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