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Monster
- 2025-2-10 9:14:02 @
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define TRACE 1
#define tcout TRACE && cout
#define fst ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define int long long
const int P = 998244353;
const int Base = 3221225477;
const int INF = 0x3f3f3f3f3f3f3f3f;
const int N = 1e6 + 10, M = 2e6 + 10;
int n,m,cnt;
int a[N];
signed main()
{
cin>>n>>m;
for(int i=1;i<=n;i++)
{
cin>>a[i];
}
sort(a+1,a+n+1);
for(int i=n;i>=1;i--)
{
if(m<=0)
{
cout<<cnt;
return 0;
}
m-=a[i];
cnt++;
}
cout<<-1;
return 0;
}
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