kaeducation

Welcome to the Course!

Development Environment Setup - Windows

Development Environment Setup - macOS

Development Environment Setup - Ubuntu

Course GitHub Repository and How to Run Tests

Python Crash Course (Optional)

How to use this Course

Course Problem List

Strings Introduction

Valid Palindrome (LC #125)

Longest Palindromic Substring (LC #5)

Longest Substring Without Repeating Characters - Part 1 (LC #3)

Longest Substring Without Repeating Characters - Part 2 (LC #3)

Valid Anagram (LC #242)

Group Anagrams (LC #49)

Valid Parentheses (LC #20)

[Now You Try] Backspace String Compare (LC #844)

Encode and Decode Strings (LC #271)

Dynamic Programming Introduction

Climbing Stairs (LC #70)

House Robber - Part 1 (LC #198)

House Robber - Part 2 (LC #198)

Jump Game - Part 1 (LC #55)

Jump Game - Part 2 (LC #55)

Jump Game - Part 3 (LC #55)

Longest Increasing Subsequence - Part 1 (LC #300)

Longest Increasing Subsequence - Part 2 (LC #300)

Coin Change - Part 1 (LC #322)

Coin Change - Part 2 (LC #322)

Unique Paths (LC #62)

Arrays Introduction

Contains Duplicate (LC #217)

Product of Array Except Self (LC #238)

Container With Most Water (LC #11)

Best Time to Buy and Sell Stock (LC #121)

Two Sum (LC #1)

3Sum - Part 1 (LC #15)

3Sum - Part 2 (LC #15)

Longest Consecutive Sequence (LC #128)

Maximum Subarray - Part 1 (LC #53)

Maximum Subarray - Part 2 (LC #53)

Maximum Product Subarray - Part 1 (LC #152)

Maximum Product Subarray - Part 2 (LC #152)

Find Minimum in Rotated Sorted Array - Part 1 (LC #153)

Find Minimum in Rotated Sorted Array - Part 2 (LC #153)

Intervals Introduction

Meeting Rooms (LC #252)

Non-overlapping Intervals - Part 1 (LC #435)

Non-overlapping Intervals - Part 2 (LC #435)

Merge Intervals (LC #56)

Meeting Rooms II - Part 1 (LC #253)

Meeting Rooms II - Part 2 (LC #253)

Matrix Introduction

Spiral Matrix - Part 1 (LC #54)

Spiral Matrix - Part 2 (LC #54)

Set Matrix Zeroes - Part 1 (LC #73)

Set Matrix Zeroes - Part 2 (LC #73)

Word Search (LC #79)

Design (Practical Data Structures) Introduction

Shuffle an Array (LC #384)

Moving Average from Data Stream (LC #346)

Range Sum Query - Immutable - Part 1 (LC #303)

Range Sum Query - Immutable - Part 2 (LC #303)

Min Stack - Part 1 (LC #155)

Min Stack - Part 2 (LC #155)

Implement Queue using Stacks - Part 1 (LC #232)

Implement Queue using Stacks - Part 2 (LC #232)

Insert Delete GetRandom O(1) - Part 1 (LC #380)

Insert Delete GetRandom O(1) - Part 2 (LC #380)

Linked List Introduction

Reverse Linked List (LC #206)

Linked List Cycle (LC #141)

[Now You Try] Middle of the Linked List (LC #876)

Remove Nth Node From End of List (LC #19)

[Now You Try] Remove Linked List Elements (LC #203)

Merge Two Sorted Lists (LC #21)

Reorder List (LC #143)

Copy List with Random Pointer (LC #138)

Trees Introduction

Number of Islands (LC #200)

Invert Binary Tree (LC #226)

Maximum Depth of Binary Tree (LC #104)

[Now You Try] Maximum Depth of Binary Tree, *Iterative* (LC #104)

Binary Tree Level Order Traversal (LC #102)

Same Tree (LC #100)

Subtree of Another Tree (LC #572)

Validate Binary Search Tree (LC #98)

Lowest Common Ancestor of a Binary Search Tree - Part 1 (LC# 235)

Lowest Common Ancestor of a Binary Search Tree - Part 2 (LC# 235)

Kth Smallest Element in a BST (LC #230)

Verify Preorder Serialization of a Binary Tree - Part 1 (LC #331)

Verify Preorder Serialization of a Binary Tree - Part 2 (LC #331)

Implement Trie (Prefix Tree) (LC #208)

Add and Search Word - Data structure design (LC #211)

Graphs Introduction

Number of Connected Components in an Undirected Graph (LC #323)

[Now You Try] Detect Cycle in Directed Graph

Course Schedule (LC #207)

[Now You Try] Detect Cycle in an Undirected Graph

Graph Valid Tree (LC #261)

Clone Graph (LC #133)

Heaps Section Introduction

Kth Largest Element in an Array (LC #215)

K Closest Points to Origin (LC #973)

Top K Frequent Elements (LC #347)

Merge k Sorted Lists (LC #23)

Congratulations!