How to Solve Check If Array Pairs Are Divisible by k Problem
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Check If Array Pairs Are Divisible by k
Given an array of integers arr of even length n and an integer k. We want to divide the array into exactly n / 2 pairs such that the sum of each pair is divisible by k. Return true If you can find a way to do that or false otherwise.
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Understanding the Check If Array Pairs Are Divisible by k Problem
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Problem Statement
Given an array of integers arr of even length n and an integer k. We want to divide the array into exactly n / 2 pairs such that the sum of each pair is divisible by k. Return true If you can find a way to do that or false otherwise.
Check If Array Pairs Are Divisible by k
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Examples
# Example 1
arr = [1,2,3,4,5,10,6,7,8,9], k = 5
true
# Example 2
arr = [1,2,3,4,5,6], k = 7
true
# Example 3
arr = [1,2,3,4,5,6], k = 10
false
Constraints
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Solve Check If Array Pairs Are Divisible by k — Given an array of integers arr of even length n and an integer k. We want to div...
Here's the optimal approach using Array:
Time: O(n) | Space: O(n)
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