from bisect import bisect_right

N, S = map(int, input().split())
A = list(map(int, input().split()))

A.sort()
if sum(A) < S: exit(print(1))
if A[-1] >= S: exit(print(A[-1]))

# S = 20, k=10
# [7, 9, 13, 15, 19]
# k秒で終わるか?
def judge(k):
    s = bisect_right(A, k)
    if s == N: return True
    # T = A[s:]
    ssum = 0
    i = N - 1
    while i >= s:
        ssum += A[i]
        i -= k
    # print(k, s, ssum)
    return ssum <= S

ok = A[-1]
ng = 0
while abs(ok-ng) > 1:
    mid = (ok+ng) // 2
    if judge(mid): ok = mid
    else: ng = mid

print(ok)