传统时间复杂度是$O(n+m)n/64$,询问在稠密图上怎么做到$O(n^2)$。
关于有向无环图可达性统计的问题
2019-09-12 13:55:32 By a1b3c7d9
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r_64
只能用矩阵乘法做到$O(n^\omega)$吧?如果要问两两可达性的话,这个问题跟矩阵乘法应该是等价的。。。
- 2019-09-12 14:54:02
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可以用@mike来提到mike这个用户,mike会被高亮显示。如果你真的想打“@”这个字符,请用“@@”。