题目链接:http://codeforces.com/problemset/problem/801/A 思路:题目中字符串的长度最长100个字符,所以,可以考虑用暴力,先遍历一遍匹配"VK"的,并把符合条件的标记成其他的字符(如'$'),然后再遍历一遍,只要找到符合"VV"或者"KK"的,就把答案加1,然后跳出循环,然后输出答案即可. AC代码: #include<cstdio> #include<cstring> usi…

801A - Vicious Keyboard 思路: 水题: 来,上代码: #include <cstdio> #include <cstring> #include <iostream> #include <algorithm> using namespace std; int len,ans; ]; int check() { ; ;i<len;i++) { ]=='K') res++; } return res; } int main() {…

A. Vicious Keyboard time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Tonio has a keyboard with only two letters, "V" and "K". One day, he has typed out a string s with only t…

A. Vicious Keyboard time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Tonio has a keyboard with only two letters, "V" and "K". One day, he has typed out a string s with only t…

题目链接 题意: 给定一个字符串,最多更改一个字符,问最多可以有多少个“VK”子串? 思路: 由于数据量很小,不妨尝试暴力写.首先算出不更改任何字符的情况下有多个VK字串,然后尝试每一次更改一个位置的字符,然后暴力算出有多少个VK,取出这些答案中 的最大值,即是答案. 代码: #include <iostream> #include <cstdio> #include <cstring> #include <algorithm> #include <c…

[题目链接]:http://codeforces.com/contest/801/problem/A [题意] 一个字符串只由VK组成; 让你修改一个字符; 使得剩下的字符串里面子串VK的个数最大; [题解] 枚举修改哪一个字符; 然后获取剩余的字符里面VK的数的个数; 取MAX就好; [Number Of WA] 0 [完整代码] #include <bits/stdc++.h> using namespace std; #define lson l,m,rt<<1 #defin…

A. Vicious Keyboard time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Tonio has a keyboard with only two letters, "V" and "K". One day, he has typed out a string s with only t…

A. Vicious Keyboard time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output Tonio has a keyboard with only two letters, "V" and "K". One day, he has typed out a string s with only t…

A. Vicious Keyboard 题意:给你一个字符串,里面只会包含VK,这两种字符,然后你可以改变一个字符,你要求VK这个字串出现的次数最多. 题解:数据范围很小,暴力枚举改变哪个字符,然后check就好. #include<bits/stdc++.h> using namespace std; int main(){ string s; cin>>s; int ans = 0; for(int i=0;i<s.size();i++){ if(s[i]=='V'){…

A. Vicious Keyboard time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Tonio has a keyboard with only two letters, "V" and "K". One day, he has typed out a string s with only t…