全红Wa求助！

#include <iostream>
using namespace std;
int main()
{
	int n,sum,a[101]={},b;
	cin >> n;
	for(int i=1;i<=n;i++)cin >> a[i];
	cin >> b;
	for(int i=1;i<=n;i++){if(a[i]==b)sum++;}
	cout << sum; 
	return 0;
}