D. The Next Good String time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output In problems on strings one often has to find a string with some particular properties. The problem authors were relu…

[Educational Codeforces Round 16]E. Generate a String 试题描述 zscoder wants to generate an input file for some programming competition problem. His input is a string consisting of n letters 'a'. He is too lazy to write a generator so he will manually ge…

Link: Codeforces #196 传送门 A: 枚举 #include <bits/stdc++.h> using namespace std; #define X first #define Y second typedef long long ll; typedef pair<int,int> P; ; <<; int main() { scanf("%d%d",&n,&m); ;i<=m;i++) scanf(&…

D. String Game time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output Little Nastya has a hobby, she likes to remove some letters from word, to obtain another word. But it turns out to be pretty…

题目链接: http://codeforces.com/problemset/problem/710/E E. Generate a String time limit per test 2 secondsmemory limit per test 512 megabytes 问题描述 zscoder wants to generate an input file for some programming competition problem. His input is a string co…

http://codeforces.com/contest/1092/problem/A You are given two integers nn and kk. Your task is to construct such a string ss of length nn that for each ii from 11 to kk there is at least one ii-th letter of the Latin alphabet in this string (the fir…

\(>Codeforces \space 196\ E. Tricky\ and\ Cleve\ Password<\) 题目大意 : 给出一个有 \(n\) 个结点,\(m\) 条边的连通带权无向图,有k个点设有传送门.开启的传送门可以花费 \(0\) 的代价传送,走一条边要话费等同边权的代价, 一开始,所有传送门关闭, 每当你到达一个有传送门的点,那个传送门就会永久开启, 求从 \(1\) 号点出发开启所有传送门所需的最小代价 \(1 \leq n, m \leq 10^5\) 解题思路…

C. The Smallest String Concatenation 题目连接: http://www.codeforces.com/contest/632/problem/C Description You're given a list of n strings a1, a2, ..., an. You'd like to concatenate them together in some order such that the resulting string would be lex…

C. Bear and String Distance 题目连接: http://www.codeforces.com/contest/628/problem/C Description Limak is a little polar bear. He likes nice strings - strings of length n, consisting of lowercase English letters only. The distance between two letters is…

题目链接:http://codeforces.com/problemset/problem/632/C C. The Smallest String Concatenation time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output You're given a list of n strings a1, a2, ..., an. Y…