Challenge: Find Symmetric Pairs in a List
Explore how to find symmetric pairs within a list by using hash tables for efficient lookup. Understand the concept of symmetric pairs and apply hashing techniques to implement a solution in Python that detects pairs where both orientations exist.
We'll cover the following...
We'll cover the following...
Statement
Given a list 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 list.
If no symmetric pair is found, return an empty list.
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...