Files

36 lines
488 B
C++

#include <bits/stdc++.h>
using namespace std;
void test_case(int tc){
string s;
cin >> s;
for(size_t i = 0; i < (s.size() + 1) / 2; ++i){
if(s[i] != s[i + (s.size() + 1) / 2]){
cout << "NO\n";
return;
}
}
cout << "YES\n";
return;
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
int t;
cin >> t;
for(int tc = 1; tc <= t; ++tc){
test_case(tc);
}
cout << flush;
return 0;
}