func_code_string: #include <bits/stdc++.h>      #define ll long long      using namespace std;      int t;      int main() {       ios_base::sync_with_stdio(false);       cin.tie(0);       cout.tie(0);       cin >> t;       while (t--) {           int n;           cin >> n;           vector<pair<int, int> > a(n + 1);           for (int i = 1; i <= n; i++) {               cin >> a[i].first;               a[i].second = i;           }           sort(a.begin() + 1, a.end());           if (a[1].first == a[2].first) {               cout << a[n].second << endl;           } else {               cout << a[1].second << endl;           }       }          return 0;   }