Solution: Find Symmetric Pairs in an Array
Discover how to find all symmetric pairs within an array by leveraging hash tables in Java. This lesson guides you through a step-by-step approach to store and detect pairs efficiently, ensuring you grasp both the algorithm and its time and space complexity.
We'll cover the following...
We'll cover the following...
Statement
Given an array of pairs, nums, find all the symmetric pairs from it.
A symmetric pair is defined as a pair [a, b] such that both [a, b] and [b, a] exist in the array.
If no symmetric pair is found, return an empty array.
Each symmetric pair should be returned once (you may return either
[a, b]or[b, a]).The output can be in any order.
Constraints:
nums.length...