func_code_string: #include <bits/stdc++.h>   using namespace std;   void foobar() {     long long int n, i;     cin >> n;     vector<long long int> arr(n);     long long int mm = INT_MAX;     for (i = 0; i < n; ++i) {       cin >> arr[i];       mm = min(mm, arr[i]);     }     for (i = 0; i < n; ++i) {       arr[i] -= mm;       if (arr[i] % 2) {         cout <<  NO  << endl;         return;       }     }     cout <<  YES  << endl;   }   int main() {     long long int test;     cin >> test;     while (test--) foobar();   }   