Two Sum Index Lookup | Dataford Interview Questions

Given an integer array nums and an integer target, return the indices of the two distinct elements whose sum equals target. Return the answer as a list of two indices in any order. You may assume exactly one valid pair exists, and the same element cannot be used twice.

Constraints

2 <= len(nums) <= 10^4
-10^9 <= nums[i] <= 10^9
-10^9 <= target <= 10^9
Exactly one valid answer exists
You may not use the same element twice

Function Signature

def two_sum(nums, target):

Your question is Two Sum Index Lookup. Start with the requirements in the Question tab.

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Problem

Constraints

2 <= len(nums) <= 10^4
-10^9 <= nums[i] <= 10^9
-10^9 <= target <= 10^9
Exactly one valid answer exists
You may not use the same element twice

Function Signature

def two_sum(nums, target):

Your question is Two Sum Index Lookup. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.