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Pair With Given Difference


Problem Description

Given an one-dimensional unsorted array A containing N integers.

You are also given an integer B, find if there exists a pair of elements in the array whose difference is B.

Return 1 if any such pair exists else return 0.



Problem Constraints
  • 1 <= N <= 105
  • -103 <= A[i] <= 103
  • -105 <= B <= 105


Input Format

First argument is an integer array A of size N.

Second argument is an integer B.



Output Format

Return 1 if any such pair exists else return 0.



Example Input

Input 1:

 A = [5, 10, 3, 2, 50, 80]
 B = 78

Input 2:

 A = [-10, 20]
 B = 30



Example Output

Output 1:

 1

Output 2:

 1



Example Explanation

Explanation 1:

 Pair (80, 2) gives a difference of 78.

Explanation 2:

 Pair (20, -10) gives a difference of 30 i.e 20 - (-10) => 20 + 10 => 30



NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a doubt? Checkout Sample Codes for more details.
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