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

def check(X):
	i, T = 0, 1
	while i < N and A[i] > X:
		T += A[i]
		i += X
	return T <= S
	
ng, ok = 0, 10 ** 10
while ok - ng > 1:
	mid = (ok + ng) // 2
	ok, ng = (mid, ng) if check(mid) else (ok, mid)
print(ok)