use std::cmp::Reverse;

use proconio::input;

fn main() {
    input! {
        (n, s): (usize, usize),
        mut aa: [usize; n],
    }

    aa.sort_unstable_by_key(|&a| Reverse(a));

    let is_ok = |x: usize| {
        let mut curr = 0;
        let mut sum = 0;
        while curr < n && sum + aa[curr] < s {
            sum += aa[curr];
            curr += x;
        }

        curr >= n || aa[curr] <= x
    };

    let mut ok = *aa.iter().max().unwrap();
    let mut ng = 0_usize;
    while ok.abs_diff(ng) > 1 {
        let mid = (ok + ng) / 2;
        if is_ok(mid) {
            ok = mid;
        } else {
            ng = mid;
        }
    }

    println!("{ok}");
}