Interview Prep - The Last Mile in PHP

This course focuses on advanced and popular topics that are commonly encountered in technical interviews. You'll delve into hash tables, heaps, advanced graph algorithms, string searching algorithms, and bit manipulation techniques. Mastering these areas will provide you with a comprehensive skill set to tackle even the toughest coding interview questions.

Lessons and practices

Lesson 1: Introduction to Associative Arrays in PHP

Find the First Repeating String in an Array

Determine Nearby Duplicate Indices

Sum Pairs Problem in Arrays

Find Anagrams in a List of Strings

Count Distinct Pairs with Given Difference

Lesson 2: Efficient Use of Priority Queues in PHP with SplPriorityQueue

Finding the K Most Frequent Elements in an Array

Find K Shortest Strings in a List

Sort by Absolute Difference from Median

Finding Medians of Integer Stream

Lesson 3: Advanced Graph Algorithms: Implementing Dijkstra's Algorithm in PHP

Counting Connected Components in an Undirected Graph

Shortest Path using Dijkstra's Algorithm in a Grid

Topological Sort of a Directed Acyclic Graph

Implement Dijkstra’s Algorithm in PHP

Finding the Longest Path in a Directed Acyclic Graph (DAG)

Find Friends Efficiently in a Social Network Graph

Finding the Shortest Path in a Grid

Lesson 4: String Searching Algorithms in PHP

Implement KMP String Searching Algorithm in PHP

Maximizing Substring Occurrences

Count Palindromic Substrings in a Given Length

Longest Common Prefix Finder

Lesson 5: Bit Manipulation Techniques in PHP

Check if a Number is a Power of Two Using Bit Manipulation

Find the Position of the Lone Set Bit

Counting Unset Bits in a 32-bit Integer

Swap Odd and Even Bits in an Integer

Bit Difference Counter Task

Interested in this course? Learn and practice with Cosmo!

Practice is how you turn knowledge into actual skills.