codeforces 1013 A Piles With Stones

http://codeforces.com/contest/1013/problem/A

只要看第二次的总和没有比第一次还大即可

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
    while(cin>>n)
    {
    	int a;
    	int s1=0;
    	int s2=0;
    	for(int i=1;i<=n;i++)
    	{
    		cin>>a;
    		s1+=a;
		}
		for(int i=1;i<=n;i++)
		{
			cin>>a;
			s2+=a;
		}
		if(s2>s1)
		cout<<"No"<<endl;
		else cout<<"Yes"<<endl;
	}
    return 0;
}