codeforces 897A Scarborough Fair 暴力签到

codeforces 897A  Scarborough Fair  暴力签到

codeforces 897A Scarborough Fair

题目链接:

http://codeforces.com/problemset/problem/897/A

思路:

暴力大法好

代码:

#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;
typedef long long ll;
int n,m;
string s;
int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>m;
    cin>>s;
    int l,r;
    char c1,c2;
    for(int i=0;i<m;++i) {
        cin>>l>>r>>c1>>c2;
        for(int j=l-1;j<=r-1;++j) {
            if(s[j]==c1) s[j]=c2;
        }
    }
    cout<<s<<endl;
    return 0;
}