WA，求助

#include <bits/stdc++.h>
using namespace std;
int n,a[8], b[8],c[8],w; //a为中奖号码,w为计数，
int main()
{
	cin >> n;
	for (int s = 1; s <= 8; s ++) //输入中奖号码
	{
		cin >> a[s];
	}
	for (int h = 1; h <= n; h ++) //h张彩票
	{
		w = 0;
		for (int i = 1;i <= 8;i ++) //输入并判断
		{
			for (int d = 1;d <= 8;d ++) //遍历中奖号码并判断
			{
				cin >> b[d];
			}
			for (int k = 1;k <= 8;k ++)
			{
				for (int f = 1;f <= 8;f ++)//最终判断
				{
					if (a[f] == b[k])
					{
						w ++;
					}
				}
			}
		}
		for (int g = 1; g <= 8; g ++)
		{
			if (w == g) 
			{
				c[g] += w;
			}
			else 
			{
				c[g] = 0;
			}
		}
	}
	for (int j = 1;j <= 8;j ++)
	{
		cout << c[j];
	}
	return 0;
}