65分求条(帮助必关)

#include<bits/stdc++.h>
using namespace std;
int n, m, a, b, ans;
int main() {
	cin >> n >> m >> a >> b;
	if (n > 500 && m > 500) cout << (n + m) / (a + b);
	else {
		for (int x = 1; x <= 10000; x++)
			for (int y = 1; y <= 10000; y++)
				if (a * x + b * y <= n && b * x + a * y <= m)
					ans = max(ans, x + y);
		cout << ans;
	}
	return 0;
}