TRUNG C++

#include <bits/stdc++.h>
using namespace std;

string s;
int t;

void solve()
{
    getline(cin,s);
      for(int i=s.length()-1;i>0;i--)
        if(s[i]==s[i-1])
             s.replace(i,1,"");
    cout<<s<<endl;
}

int main()
{
    freopen("trung.inp","r",stdin);
    freopen("trung.out","w",stdout);
    cin<<t;
    getline(cin,s);//xuong hang
    for(int i=1;i<=t;i++)
        giai();
}