摘要：
题意： 求最大流 思路： $1e5$条边，偷了一个超长的$HLPP$板子。复杂度$n^2 \sqrt{m}$。但通常在随机情况下并没有isap快。 板子： 代码： cpp include include include include include include include define i 阅读全文
摘要：
题意： "传送门" 有一个空的队列，有$n( n include include include include include include include include include include include include include typedef long long ll; 阅读全文