riddhi-jain / DSAready

This is a beginner-friendly project aiming to build a problem-set on different data structures and algorithms in different programming languages.

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Pair Sum

riddhi-jain opened this issue · comments

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 can return the answer in any order.

Example 1:

Input: nums = [2,7,11,15], target = 9
Output: [0,1]
Output: Because nums[0] + nums[1] == 9, we return [0, 1].
Example 2:

Input: nums = [3,2,4], target = 6
Output: [1,2]
Example 3:

Input: nums = [3,3], target = 6
Output: [0,1]

Follow-up: A solution with less than O(n^2) time complexity will be merged.

Is this still available to contribute to?

yes @ankit010201 .
Feel free to contribute 👍