here is my code
#include<iostream>
using namespace std;
int main()
{
int T = 0;
int N = 0;
int sum = 0;
int tmp = 0;
bool flag = false;
int arr[100];
int arr1[100];
cin >> T;
for (int i = 0; i < T; i++)
{
flag = false;
sum = 0;
cin >> N;
for (int j = 0; j < N; j++)
{
cin >> arr[j];
//sum += tmp;
//if (sum>N || tmp >= N)
//{
// flag = true;
//}
}
for (int a = 0; a < N; a++)
{
sum += arr[a];
if (arr[a] >= N)
{
flag = true;
break;
}
if (sum > N)
{
flag = true;
break;
}
}
if (sum < N)
flag = true;
if (flag)
{
cout << -1 << "\n";
}
else
{
int count1 = 0;
for (int a = 0; a < N; a++)
{
for (int b = 0; b < N; b++)
{
if (b != a)
{
if (arr[b]>0)
{
arr[b]--;
cout << b + 1<<"\t";
}
}
}
/*
if (arr[a] != 0 && a!=N-1)
{
cout << a + 2<<" ";
}
else if (arr[a] != 0 && a == N - 1)
{
cout << 1;
}*/
}
cout << "\n";
}
}
return 0;
}