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The Algorithm Interview Guide

An interview guide with a detailed step-by-step explanation to the most commonly asked questions and patterns.

A comprehensive step-by-step approach for learning algorithms for coding interviews. 50 questions with well-explained solutions that cater to both the struggling and also experienced. All solutions are explained well in detail with the help of pseudocode and also with Java.

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About

About

About the Book

A comprehensive step-by-step approach for learning algorithms for coding interviews. 50 questions with well-explained solutions that cater to both the struggling and also experienced. All solutions are explained well in detail with the help of pseudocode and also with Java. The solutions also covers the common algorithmic patterns that are used.

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Author

About the Author

Rajesh Mohanan

Rajesh has been part of developing large-scale software projects over the last 15 years.

Contents

Table of Contents

Introduction

O(n) the Complexities

Moving Zeroes

The Majority Element

Sub Array With the Maximum Sum Of Size k

Longest Sequence With k Distinct Characters

Sum of Pairs With Target Sum

The Dutch National Flag Problem

Add 2 Linked Lists

Remove Duplicates From a Linked List

A brief Introduction to Recursion

Is the Array a Palindrome

Print the Perimeter of a Binary Tree

Level Order Successor

Lowest Common Ancestor of a Binary Search Tree

Lowest Common Ancestor of a Binary Tree

Sum of All Paths of a Binary Tree

Top k Frequent Number

Maximum Profit

Longest Palindromic Subsequence

Longest Common Subsequence

Counting Negative numbers from a Sorted Matrix

Valid Parenthesis Sequence

Merging Intervals

Check for Conflicting Intervals

In-place sorting

Find the Duplicate Number From an Array

Finding Median

Find All the Subsets

Find all the Permutations

Search in an Infinite Array

Find the kth Smallest Number

Find the Number of Islands

Grouping Anagrams

Search a rotated Array

Sum of Deepest Node

Add 2 binary numbers

Longest Common Prefix

Common Elements of 3 Arrays

Flood Fill

Find the Nth Highest number from a Binary Search Tree

Evaluate an arithmetic expression

Make a fully connected network

Mirror a Binary Tree

Starting and Ending index of an element in a Sorted Array

Merge Two Sorted Arrays

ZigZag String conversion

Represent Number in words

Construct Binary Tree from preorder and inorder traversal inputs

Rotate Image

Sort a given Array using Quick Sort

Merge Sort

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