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Pair With Given Difference - InterviewBit Solution

Problem Description

Given a 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 <= 1e5

  • -1e3 <= A[i] <= 1e3

  • -1e5 <= B <= 1e5

Input Format

The first argument is an integer array A of size N. The 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:
Output 2:

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 

Solution Approach:


Code in C++

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