70. Short Substrings (Code Forces - Round 650 - Div. 3).cpp

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int t;
    cin >> t;
    while(t--){
        string s;
        cin >> s;
        int n = s.size();
        string ans = "";
        ans = ans + (char)s[0] + (char)s[1];
        for(int i=3; i<n; i+= 2)
            ans = ans + (char)s[i];
        cout << ans << "\n";
    }
}