Ladder – Basic Algorithm

1 – Variable

  • Reverse Integer
  • Fizz Buzz

2 – Loops, Function & OOP

if, for, while

  • Palindrome Number
  • Swap Two Integers in Array

3 – Linear Data Structure I

List, String

  • String to Integer
  • Remove Duplicates from Sorted Array
  • Remove Element
  • Reverse Words in a String
  • Valid Palindrome

4 – Linear Data Structure II

Linked list, Stack, Queue

  • Implement Stack using Queues
  • Remove Linked List Elements
  • Valid Parentheses
  • Remove Nth Node From End of List
  • Merge Two Sorted Lists
  • Reverse Linked List
  • Implement Queue using Stacks

5 – Binary Tree & Depth First Traversal

Validate Binary Search Tree
Binary Tree Zigzag Level Order Traversal

6 – Breadth First Traversal & BST

Binary Tree Zigzag Level Order Traversal
Validate Binary Search Tree

7 – Set, Dictionary & Divide and Conquer

Same Tree
Two Sum

8 – Sort Algorithm

Merge Two Sorted Arrays
Subarray Sum Closest

Leave a Reply

Your email address will not be published. Required fields are marked *