班门弄斧一下，没用结构体

#include<bits/stdc++.h>
using namespace std;
bool vis[501];
int m,n,t[501],w[501];
int main(){
	freopen("riddle.in","r",stdin);
	freopen("riddle.out","w",stdout);
	cin >> m >> n;
	for (int i=1;i<=n;i++) cin >> t[i];
	for (int i=1;i<=n;i++) cin >> w[i];
	for (int i=n;i>=1;i--){
	int p=0;
	for (int j=1;j<=n;j++) if (!vis[j]&&t[j]>=i){
		if (w[j]>w[p]) p=j;
	}
		if (p>0) vis[p]=1;
	}
	for (int i=1;i<=n;i++) if (!vis[i]) m-=w[i];
	cout << m << endl;
	return 0;
}

比较菜，请多指教