萌妹第一次发帖子,用LL全WA,用unsigned int 就AC
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萌妹第一次发帖子,用LL全WA,用unsigned int 就AC
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Ja711楼主2023/2/18 10:14

unsigned int s[N];这个是异或前缀和数组,用LL就全WA

2023/2/18 10:14
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