#include<iostream> using namespace std; string str; int a; int f=0; int main(){ cin>>str; int n=str.length(); for(int i=1;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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