How should I practice Find All Pairs of Integers?

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Find All Pairs of Integers

Salesforce● MediumFULLTIMEOA

Problem statement

Given array of integers, find all pairs of integers (x,y) from the array that satisfy below conditions:

min(|x - y|, |x + y|) <= min(|x|, |y|)
max(|x - y|, |x + y|) >= max(|x|, |y|)

Function

findAllPairs(arr: int[]) → int[][]

Examples

Example 1

arr = [2, 5, -3]return = [[2, -3], [5, -3]]

An educated guess - The pairs that satisfy the given conditions are:

(2, -3): min(|2 - (-3)|, |2 + (-3)|) = min(5, 1) = 1 <= min(2, 3) = 2 and max(5, 1) = 5 >= max(2, 3) = 3
(5, -3): min(|5 - (-3)|, |5 + (-3)|) = min(8, 2) = 2 <= min(5, 3) = 3 and max(8, 2) = 8 >= max(5, 3) = 5

Constraints

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Problem statement

Function

Examples

Example 1

Constraints

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