Key Pair
Submissions: 61607   Accuracy:

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  Difficulty: Easy   Marks: 2

Given an array A of N positive integers and another number X. Determine whether or not there exist two elements in A whose sum is exactly X.

Input:
The first line of input contains an integer T denoting the number of test cases. The first line of each test case is N and X, N is the size of array. The second line of each test case contains N integers representing array elements A[i].

Output:
Print "Yes" if there exist two elements in A whose sum is exactly X, else "No" (without quotes).

Constraints:
1 ≤ T ≤ 100
1 ≤ N ≤ 105
1 ≤ A[i] ≤ 105

Example:
Input:

2
6 16
1 4 45 6 10 8
5 10
1 2 4 3 6

Output:
Yes
Yes

Explanation:
Testcases 1:
10 and 6 are numbers making a pair whose sum is equal to 16.

** For More Input/Output Examples Use 'Expected Output' option **

Author: rajatjha


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