View Code of Problem 55

#include <iostream>
#include <cstdio>
using namespace std;
int main(){
    string s1;
    char s2;
    cin>>s1>>s2;
    for(int i=0;i<s1.length();i++){
        if(s1[i]==s2){
            s1.erase(i,1);
            i--;
        }
    }
    cout<<s1<<endl;
    return 0;
}