Problem: You are given an array A of size N, and Q queries to deal with. For each query, you are given an integer X, and you're supposed to find out if X is present in the array A or not.

Input:
The first line contains two integers, N and Q, denoting the size of array A and number of queries. The second line contains N space separated integers, denoting the array of elements Ai. The next Q lines contain a single integer X per line.

Output:
For each query, print YES if the X is in the array, otherwise print NO.

Constraints:
1 ≤ N, Q ≤ 10^5
1 ≤ Ai ≤ 10^9
1 ≤ X ≤ 10^9

SAMPLE INPUT
5 10
50 40 30 20 10
10
20
30
40
50
60
70
80
90
100

SAMPLE OUTPUT
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO

Solution (in PYTHON):

Solution:
def bsearch(arr , n , num):
	l , r = 0 , n-1
	while l <= r:
		mid = (l+r)/2
		if arr[mid] == num:
			return 1
		elif arr[mid] > num:
			r = mid - 1
		else:
			l = mid + 1
	return 0
n , q = map(int , raw_input().split())
arr = map(int , raw_input().split())
arr = sorted(arr)
for i in range(q):
	num = int(raw_input())
	if bsearch(arr , n , num):
		print "YES"
	else:
		print "NO"