How to Design a Two-Sum Data Structure?
Design and implement a TwoSum class. It should support the following operations: add and find. add – Add the number to an internal data structure. find – Find if …
Category: Hash Map / Hash Set
Two Pointer Algorithm to Find Maximum Two Sum Less Than K
June 30, 2019
algorithms, brute force, c / c++, data structure, Hash Map / Hash Set, python, Two Pointer
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Given an array A of integers and integer K, return the maximum S such that there exists i < j with A + A = S and S < …
Google Interview Question – Print Message
This is the technical phone interview question from Google. Google has offices in London but the call was from Google Switzerland (+41). The interview lasts for 45 minutes. Given …
The Two Sum Algorithm using HashMap in C++/Java
January 26, 2014
algorithms, c / c++, data structure, Hash Map / Hash Set, interview questions, java
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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 …