https://github.com/shuoros/leetcodehub

LeetCode problems' solutions with explanation
https://github.com/shuoros/leetcodehub

leetcode leetcode-java leetcode-solutions

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LeetCode problems' solutions with explanation

• Host: GitHub
• URL: https://github.com/shuoros/leetcodehub
• Owner: shuoros
• License: mit
• Created: 2022-06-20T06:13:08.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2022-07-16T15:41:44.000Z (over 2 years ago)
• Last Synced: 2023-03-05T16:37:19.009Z (over 1 year ago)
• Topics: leetcode, leetcode-java, leetcode-solutions
• Language: Java
• Homepage:
• Size: 45.9 KB
• Stars: 4
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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LeetCode Hub

 
LeetCode problems' solutions with explanation




    

      		

    

	  

      		

    





     

     

     





    

      		

    

    

      		

    

    

      		

    



Solutions


#TitleDifficultyRelated TopicsSolution

    

        1

        Two Sum

        🟢

        Array, Hash Table

        Java

    

    

        2

        Add Two Numbers

        🟡

        Linked List, Math, Recursion

        Java

    

    

        4

        Median of Two Sorted Arrays

        🔴

        Array, Binary Search, Devide and Conquer

        Java

    

    

        7

        Reverse Integer

        🟡

        Math

        Java

    

    

        9

        Palindrome Number

        🟢

        Math

        Java

    

    

        13

        Roman to Integer

        🟢

        Hash Table, Math, String

        Java

    

    

        20

        Valid Parentheses

        🟢

        String, Stack

        Java

    

    

        21

        Merge Two Sorted Lists

        🟢

        Linked List, Recursion

        Java

    

    

        26

        Remove Duplicates from Sorted Array

        🟢

        Array, Two Pointers

        Java

    

    

        70

        Climbing Stairs

        🟢

        Math, Dynamic Programming, Memoization

        Java

    

    

        121

        Best Time to Buy and Sell Stock

        🟢

        Array, Dynamic Programming

        Java

    

    

        206

        Reverse Linked List

        🟢

        Linked List, Recursion

        Java

    

    

        278

        First Bad Version

        🟢

        Binary Search, Interactive

        Java

    

    

        383

        Ransom Note

        🟢

        Hash Table, String, Counting

        Java

    

    

        392

        Is Subsequence

        🟢

        Two Pointers, String, Dynamic Programming

        Java

    

    

        409

        Longest Palindrome

        🟢

        Hash Table, String, Greedy

        Java

    

    

        412

        Fizz Buzz

        🟢

        Math, String, Simulation

        Java

    

    

        509

        Fibonacci Number

        🟢

        Math, Dynamic Programming, Recursion, Memoization

        Java

    

    

        589

        N-ary Tree Preorder Traversal

        🟢

        Stack, Tree, Depth-First-Search

        Java

    

    

        704

        Binary Search

        🟢

        Array, Binary Search

        Java

    

    

        724

        Find Pivot Index

        🟢

        Array, Prefix Sum

        Java

    

    

        733

        Flood Fill

        🟢

        Array, Depth-First-Search, Breadth-First-Search, Matrix

        Java

    

    

        876

        Middle of the Linked List

        🟢

        Linked List, Two Pointers

        Java

    

    

        1342

        Number of Steps to Reduce a Number to Zero

        🟢

        Math, Bit Manipulation

        Java

    

    

        1480

        Running Sum of 1d Array

        🟢

        Array, Prefix Sum

        Java

    

    

        1672

        Richest Customer Wealth

        🟢

        Array, Matrix

        Java