Codeforces 343D Water Tree
题目链接:http://codeforces.com/contest/343/problem/D 题意:给一棵 […]
题目链接:http://codeforces.com/contest/343/problem/D 题意:给一棵 […]
比赛链接:http://codeforces.com/gym/101741 C.Cover the Paths […]
题目链接:https://blog.sengxian.com/solutions/bzoj-3881 题意:略 […]
题目链接:http://codeforces.com/contest/916/problem/E 题意:给你一 […]
题目链接:http://codeforces.com/problemset/problem/191/C 题意: […]
题目链接:https://www.lydsy.com/JudgeOnline/problem.php?id=4 […]
题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=36 […]
题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=40 […]
题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=43 […]
题目链接:http://www.lydsy.com/JudgeOnline/problem.php?id=11 […]