AC#1 TLE#2#10 WA#3#4#5#6#7#8#9

#include<iostream>
using namespace std;
unsigned long long a[200001];
void in(unsigned int &n){
    for(unsigned int i=1;i<=n;i++){
        cin>>a[i];
    }
}
unsigned long long out(unsigned int &n,unsigned long long &m){
    for(unsigned int r=1;r<n;r++){
        for(unsigned int i=1;i<n;i++){
            unsigned long long y;
            if(a[i]>a[i+1]){
                y=a[i];
                a[i]=a[i+1];
                a[i+1]=y;
            }
        }
    }
    unsigned long long y=0;
    for(unsigned int r=n;0<r;r--){
        if(a[r]+y<=m){
            if(a[r]+y==m){
                return n-r+1;
            }else{
                y=y+a[r];
            }
        }
    }
    return -1;
}
int main(){
    unsigned int n;
    unsigned long long m,l;
    cin>>n>>m;
    in(n);
    l=out(n,m);
    if(l==-1){
        cout<<"No answer!!!";
    }else{
        cout<<l;
    }
    return 0;
}