Problem 61153. Two Sum

Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target.
You may assume that each input would have exactly one solution, and you may not use the same element twice.
You must return smaller indices first.
Example:
Input: nums = [2,7,11,15], target = 9
Output: [1, 2]
Explanation: Because nums[1] + nums[2] == 9, we return [1, 2].
Solve

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61.9% Correct | 38.1% Incorrect
Last Solution submitted on Jan 21, 2026

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