题解 | 牛牛的替换
牛牛的替换
https://www.nowcoder.com/practice/f2a107dbb99243798d3048a672e8f747
#include <iostream>
using namespace std;
int main() {
int n;
string s;
char s1,s2,s3,s4;
cin >> n >> s1 >>s2 >>s3 >> s4 >> s;
for(int i = 0;i<n;++i){
if(s[i]==s1){
s[i]=s2;
}
if(s[i]==s3){
s[i]=s4;
}
}
cout << s;
}
