2016年12月5日
Educational Codeforces Round 6 E. New Year Tree dfs+线段树
摘要： 题目链接：http://codeforces.com/contest/620/problem/E E. New Year Tree time limit per test 3 seconds memory limit per test 256 megabytes input standard inp 阅读全文
posted @ 2016-12-05 20:03 jhz033 阅读(154) 评论(0) 推荐(0) 编辑
poj 3321 Apple Tree dfs序+线段树
摘要： Apple Tree Time Limit: 2000MS Memory Limit: 65536K Description There is an apple tree outside of kaka's house. Every autumn, a lot of apples will grow 阅读全文
posted @ 2016-12-05 18:51 jhz033 阅读(180) 评论(0) 推荐(0) 编辑
hdu 3887 Counting Offspring dfs序+树状数组
摘要： Counting Offspring Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Problem Description You are given a tree, it’s ro 阅读全文
posted @ 2016-12-05 18:05 jhz033 阅读(191) 评论(0) 推荐(0) 编辑