#include<bits/stdc++.h>
#define ll long long
using namespace std;
ll n,a[1000005],b[1000005]={},w,i=0,poin=0;

int main()
{
	cin>>n;
	for(int k=0;k<n;k++)
	{
		scanf("%lld",a+k);
	}
	cin>>w;
	sort(a,a+n);
	b[0]=a[0];//
	for(int k=1;k<n&&a[poin]<=w;k++)
	{
		b[k]=a[k]+b[k-1];
		poin++;
		if(b[i]<w)
		i++;
	}
	poin--;
	while(i&&b[i]<a[poin])i--;
	cout<<i;
	
}

Wrong Answer.wrong answer On line 1 column 1, read 4, expected 3.

想要测试数据