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Learn Data Structures and Algorithms in JavaScript

Problem: Two Sum

Explore how to solve the Two Sum problem by using nested loops to find two distinct elements in an array whose sum equals a target number. Understand the implementation details, time complexity of O(n²), and minimal space use, building your problem-solving skills with arrays in JavaScript.

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Statement

Given an array of integers nums and an integer target, find two distinct elements in nums whose sum equals target. Return the indices of these two elements.

You may assume that each input has exactly one valid solution. The same element cannot be used twice. The answer may be returned in any order.

Constraints:

  • 2≤2 \leq nums.length ≤104\leq 10^4

  • ...