Basic Array

int main(){
    int t;
    cin >> t;
    while (t--) {
        int n;
        cin >> n;
        int arr[n];
        for(int i = 0; i < n ; i++){
            cin >> arr[i];
        }
        cout << maxIndexDiff(arr, n);
        cout << endl;
    }

    return 0;
}