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June LeetCoding Challenge
  • Introduction
  • Week 1
    • Invert Binary Tree
    • Delete Node in Linked List
    • Two City Scheduling
    • Reverse String
    • Random Pick with Weight
    • Queue Reconstruction by Height
    • Coin Change 2
  • Week 2
    • Power of Two
    • Is Subsequence
    • Search Insert Position
    • Sort Colors
    • Insert Delete GetRandom O(1)
    • Largest Divisible Subset
    • Cheapest Flights Within K Stops
  • Week 3
    • Search in a Binary Search Tree
    • Validate IP Address
    • Surrounded Regions
    • H-Index II
    • Longest Duplicate Substring
    • Permutation Sequence
    • Dungeon Game
  • Week 4
    • Single Number II
    • Count Complete Tree Nodes
    • Unique Binary Search Trees
    • Find the Duplicate Number
    • Sum Root to Leaf Numbers
    • Perfect Squares
    • Reconstruct Itinerary
  • Week 5
    • Unique Paths
    • Word Search II
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  • The Challenge
  • GitHub Repository of Solutions
  • Using this GitBook

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Introduction

June LeetCoding Challenge (01/06/20 to 30/06/20)

NextInvert Binary Tree

Last updated 4 years ago

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The Challenge

The June LeetCoding Challenge is a 30-day coding challenge which includes a range of curated programming problems, covering several important concepts in Data Structures and Algorithms.

For more information about the challenge, visit the link below:

GitHub Repository of Solutions

This is my first time participating in the month-long coding challenge on LeetCode and I am in the process of learning Data Structures and Algorithms myself, so my code is a result of a lot of background research and references to similar problems and solutions. Although the code may not be the most optimized, I've tried to keep my code clean and well-documented and I've explained the approach that I have taken to the best of my ability.

I will update the repository at least once a week. Feel free to star the repository for further reference:

Using this GitBook

The problems are organized week-wise and contain several sections detailing the problem statement, testcases, and constraints as provided by LeetCode, along with some background information about the concepts used in the problem and my algorithmic approach.

If you haven't solved these problems yet, stop before you reach the "code" section, and try using the information provided in the Prerequisite Knowledge section and the Algorithm section to come up with a solution on your own. All of my code is written in C++, but the logic remains relatively the same across most languages.

If you are able to come up with more optimized solutions or if you have spotted any errors in the code or explanation, go ahead and reach out. I'm always open to learning and improving.

I hope this GitBook is as helpful to you while reading it as it was to me while writing it.

Happy Coding!

https://leetcode.com/explore/challenge/card/june-leetcoding-challenge/!
LogoGitHub - keerthisree-raghu/June-LeetCoding-Challenge: Solutions for the coding problems solved in the June LeetCoding Challenge (01/06/20 - 30/06/20)GitHub