摘要:
地址:http://codeforces.com/contest/842/problem/C 题目: C. Ilya And The Tree time limit per test 2 seconds memory limit per test 256 megabytes input standa 阅读全文
摘要:
地址:http://codeforces.com/contest/842/problem/D 题目: D. Vitya and Strange Lesson time limit per test 2 seconds memory limit per test 256 megabytes input 阅读全文