快回

#include<bits/stdc++.h>
using namespace std;
bool cmp(int a,int b){
    return a>b;
}
int main(){
    int a[20001],b,n,s=0,i;
    cin>>n>>b;
    for(i=1;i<=n;i++){
        cin>>a[i];
    }
    sort(a+1,a+1+n,cmp);
    i=1;//省内存老玩家;
    while(s>=b){
        s+=a[i];
        i++;
    }
    cout<<i<<endl;
    return 0;//好习惯
}

心崩