Pair with Specific Difference

Given an array of integers and an integer K, determine whether there exists a pair of distinct indices i and j such that:

\( \text{arr}[i] - \text{arr}[j] = K \)

Note that the indices must be distinct even if the elements have the same value. Output True if such a pair exists, and False otherwise.

inputFormat

The input is given in three lines:

• The first line contains an integer n, the number of elements in the array.
• The second line contains n space-separated integers representing the array elements.
• The third line contains the integer K.

outputFormat

Output a single line with True if there exists a pair of distinct indices satisfying the condition, otherwise output False.

5
4 7 3 2 6
4

True