求指点还有三个点过不了

#include<iostream>
#include<algorithm>
using namespace std;
long long map[200000],n,need,ans,temp;
int abc(int a,int b){
	if(a<b)return 0;
	else return 1;
}
int main(){
	cin>>n>>need;
	for(int i=0;i<n;++i){
		cin>>map[i];
	}
	sort(map+0,map+n,abc);
	while(temp<need){
		temp+=map[ans];
		++ans;
	}
	cout<<ans<<endl;
	return 0;
}