为啥会UKE?

传送门

#include<bits/stdc++.h>

using namespace std;

int arr[43] = {};
int cnt[7] = {};
int n, m;

int main(){
	scanf("%d", &n);
	arr[4] = 1; arr[8] = 2; arr[15] = 3; arr[16] = 4; arr[23] = 5; arr[42] = 6;
	for(int i = 1; i <= n; i ++){
		scanf("%d", &m);
		if(m == 4 || cnt[arr[m]] + 1 <= cnt[arr[m] - 1])
			cnt[arr[m]] ++;
	}
	printf("%d\n", n - cnt[6] * 6);
	return 0;
}