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2020年4月3日
洛谷P3128 [USACO15DEC]Max Flow P（树上点差分裸题）
摘要： 题目描述 Farmer John has installed a new system of N−1N-1N−1 pipes to transport milk between the NNN stalls in his barn (2≤N≤50,0002 \leq N \leq 50,0002≤N 阅读全文
posted @ 2020-04-03 15:40 脂环 阅读(209) 评论(0) 推荐(0)
POJ3417 Network （树上差分）
摘要： Yixght is a manager of the company called SzqNetwork(SN). Now she's very worried because she has just received a bad news which denotes that DxtNetwor 阅读全文
posted @ 2020-04-03 14:27 脂环 阅读(202) 评论(0) 推荐(0)