D. Substring time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You are given a graph with n nodes and m directed edges. One lowercase letter is assigned to each node. We define a path's valu…
题目传送门 B. Perfect Number time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output We consider a positive integer perfect, if and only if the sum of its digits is exactly 1010. Given a positive integ…
题目链接: http://codeforces.com/problemset/problem/213/B B. Numbers time limit per test 2 secondsmemory limit per test 256 megabytes 问题描述 Furik loves writing all sorts of problems, especially such that he can't solve himself. You've got one of his proble…
题目链接: http://codeforces.com/problemset/problem/214/B Hometask time limit per test:2 secondsmemory limit per test:256 megabytes 问题描述 Furik loves math lessons very much, so he doesn't attend them, unlike Rubik. But now Furik wants to get a good mark fo…
D. Kindergarten Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/problemset/problem/484/D Description In a kindergarten, the children are being divided into groups. The teacher put the children in a line and associated each child wi…
A. Boredom Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/455/problem/A Description Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and d…
