func_code_string: /*           ----@sagittarius_k2-----       Created by Ritesh Ranjan       ->       */       #define fio                                ios_base::sync_with_stdio(false);       cin.tie(NULL);                          cout.tie(NULL);       #include <bits/stdc++.h>   #include <iostream>   #include <set>   #include <algorithm>   #include <iterator>           using namespace std;       #define int long long int       #define M 1000000007       using namespace std;       signed main()   {       int t;       cin>>t;       while(t--)       {           int n;           cin>>n;           int a[n+1], b[n+1];           for(int i=1; i<=n; i++)           {               cin>>a[i];               b[i]=a[i];           }           sort(a+1, a+n+1);              int ans=-1, min_no=-1;           for(int i=1; i<=n; i++)           {               int c=0;               while(i<n && a[i]==a[i+1])               {                   i++;                   c++;               }               if(c==0)               {                   min_no=a[i];                   break;               }           }           for(int i=1; i<=n; i++)           {               if(b[i]==min_no)               {                   ans=i;                   break;               }           }           cout<<ans<<  n ;       }   }