View Code of Problem 3924

#include<iostream>
using namespace std;
string str;
int a=0;
int f=0;
int main(){
    cin>>str;
    int n=str.length();
    for(int i=0;i<n;i++){
        int x=str[i]-'a';
        if(i>0 && str[i]!=str[i-1]){
            f=0;a=0;
        }
        a++;
        if(a==1){
            cout<<str[i];
        }
        if(a==2){
            f=1;
        }
    }
    cout<<endl;
    return 0;
}

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