#include <iostream>
using namespace std;
int main(){
	int n,x,aux,count=0,div = 0; cin >> n;
	for(int i = 0; i < n; i++){
		cin >> x; int v[x]; count = 0;
			for(int j = 0; j < x; j++){
				cin >> aux;
			 	for(int k = 0; k < x; k++){
			 	/*	if(k != j){
			 		cout << aux << " = " << v[k] << " ?"<< endl;
			 	}*/
						if(aux == v[k] && k != j){
							break;
						}
						else{
							v[j] = aux;
							count++;
						}
					}

			}
			cout << count / x<< endl;
	}
	return 0;
} //n*x² = 10² * 10^4 = 10^6