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Data Structures for Coding Interviews in JavaScript

Challenge: Find Two Numbers That Add up to k—Hashing

Explore how to identify two numbers in an array that add up to a specified target using hashing techniques. This lesson helps you implement an efficient solution using hash tables, enhancing your understanding of hashing concepts and practical coding challenges.

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Statement

Given a list of integers, nums, and an integer target, k, find two numbers in the list that sum up to the target k.

There is exactly one solution for each input, and each element of the list can only be used once in the solution. The order of the returned elements does not matter.

Constraints:

  • 2≤2 \leq nums.length ...