# Hash Maps Interview Questions

Browse hash maps interview questions and explore the world's largest library of mock video interview recordings.

## Hash Maps Mock Interviews

Watch others solve Hash Maps interview questions, see how they did, and learn from their mistakes.

Airbnb Interview in C++Missing item list difference
Advance this person to the next round?
Technical Skills:
4/4
Problem Solving Ability:
4/4
Communication Ability:
3/4
Google Interview in JavaMost frequent integer and pairs of integers sum
Advance this person to the next round?
Technical Skills:
4/4
Problem Solving Ability:
4/4
Communication Ability:
4/4
FAANG Interview in JavaMinimum Window Substring
Advance this person to the next round?
Technical Skills:
4/4
Problem Solving Ability:
4/4
Communication Ability:
4/4

## Hash Maps Interview questions and solutions

Get step-by-step instructions on how to approach and solve common technical interview questions.

MEDIUM
Data Structures and Algorithms
K Closest Points To Origin

Given a list of tuples that represent (X, Y) coordinates on an XY plane and an integer K, return a list of the K-closest points to the origin (0, 0).

Watch 7 interviews
MEDIUM
Data Structures and Algorithms
Three Sum

Given an array of integers, return an array of triplets such that i != j != k and nums[i] + nums[j] + nums[k] = 0.

Watch 1 interview
EASY
Data Structures and Algorithms
Two Sum

Given an array of integers, return the indices of the two numbers that add up to a given target.

Watch 5 interviews
MEDIUM
Data Structures and Algorithms
Insert Delete getRandom O(1)

Design and implement an efficient sampler that works in average O(1) time complexity.

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