全wa，样例过了！！！

代码：

#include <bits/stdc++.h>
using namespace std;
long long int n[11], a[11];

long long int jc(int x) {
	long long int h = 1;
	for (int i = 1; i <= x; i++) {
		h = h * i;
	}
	return h;
}

long long int jx(int a, int h) {
	long long int s = 0;
	while (h) {
		if (h % 10 == a) {
			s++;
		}
		h = h / 10;
	}
	return s;
}

int main() {
	long long int t;
	cin >> t;
	for (long long int i = 1; i <= t; i++) {
		cin >> n[i] >> a[i];
	}
	for (long long int i = 1; i <= t; i++) {
		cout << jx(a[i], jc(n[i])) << endl;
	}
}