#include <stdio.h>

int main()
{
    int t;
    scanf("%d", &t);
    while (t--)
    {
        int a;
        scanf("%d", &a);
        int arr[a];
        int check[a];
        for (int i = 0; i < a; i++)
        {
            scanf("%d", &arr[i]);
            check[arr[i] - 1] = 1;
        }
        int yes = 1;
        for (int i = 0; i < a; i++)
        {
            if (check[i] != 1)
            {
                yes = 0;
                break;
            }
        }
        if (yes == 1)
        {
            printf("YES\n");
        }
        else
        {
            printf("NO\n");
        }
    }

    return 0;
}