题目描述
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
输入格式
见题面
输出格式
见题面
样例输入
5 10
50 40 30 20 10
10
20
30
40
50
60
70
80
90
100
SAMPLE
样例输出
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO