The Complement Hunt

A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

easy

Seniority

L4

Problem

Given a list of integers and a target integer, return a 2-element list [i, j] with i < j such that nums[i] + nums[j] = target. Exactly one solution exists.

Summary

Every number is looking for its other half.

Practice This Problem

Solve this Python problem with real code execution. DataDriven runs your Python code in a real environment and grades it automatically.