求助 样例对了 20分

#include <bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,c,d,e,f,g,p,x1,x2,y1,y2;
	long long ans = 0;
	cin >> a >> b >> c >> d >> e >> f >> g >> p >> x1 >> x2 >> y1 >> y2;
	for(int i=x1;i<=x2;i++){
		for(int j=y1;j<=y2;j++){
			if(ans < ((a%p*i%p*i%p*i%p)+(b%p*j%p*j%p*j%p)+(c%p*i%p*i%p*j%p)+(d%p*i%p*j%p*j%p)+(e%p*i%p*j%p)+(f%p*i%p)+(g%p*j%p))%p)ans = ((a%p*i%p*i%p*i%p)+(b%p*j%p*j%p*j%p)+(c%p*i%p*i%p*j%p)+(d%p*i%p*j%p*j%p)+(e%p*i%p*j%p)+(f%p*i%p)+(g%p*j%p))%p;
		}
	}
	cout << ans;
}