LeetCode Solutions in Java

This repository contains my solutions to over 250 LeetCode questions, all implemented in Java. These solutions demonstrate my proficiency in Java programming and problem-solving skills.

Overview

Total number of solved questions: 250+
Language: Java
Link: https://leetcode.com/ridwanahamed47/

Name		Name	Last commit message	Last commit date
Latest commit History 242 Commits
.vscode		.vscode
Accenture		Accenture
Backtracking		Backtracking
Dynamic Programming		Dynamic Programming
Greedy Algorithm		Greedy Algorithm
basics of everthing		basics of everthing
recursion		recursion
104. Maximum Depth of Binary Tree.java		104. Maximum Depth of Binary Tree.java
1046. Last Stone Weight.java		1046. Last Stone Weight.java
1047. Remove All Adjacent Duplicates In String		1047. Remove All Adjacent Duplicates In String
11. Container With Most Water		11. Container With Most Water
111. Minimum Depth of Binary Tree.java		111. Minimum Depth of Binary Tree.java
121. Best Time to Buy and Sell Stock		121. Best Time to Buy and Sell Stock
122. Best Time to Buy and Sell Stock II		122. Best Time to Buy and Sell Stock II
1232. Check If It Is a Straight Line		1232. Check If It Is a Straight Line
125. Valid Palindrome		125. Valid Palindrome
128. Longest Consecutive Sequence.java		128. Longest Consecutive Sequence.java
13. Roman to Integer		13. Roman to Integer
1351. Count Negative Numbers in a Sorted Matrix		1351. Count Negative Numbers in a Sorted Matrix
137. Single Number II.java		137. Single Number II.java
1372. Longest ZigZag Path in a Binary Tree		1372. Longest ZigZag Path in a Binary Tree
138. Copy List with Random Pointer.java		138. Copy List with Random Pointer.java
14. Longest Common Prefix		14. Longest Common Prefix
1406. Stone Game III		1406. Stone Game III
143. Reorder List		143. Reorder List
1431. Kids With the Greatest Number of Candies		1431. Kids With the Greatest Number of Candies
1456. Maximum Number of Vowels in a Substring of Given Length		1456. Maximum Number of Vowels in a Substring of Given Length
1470. Shuffle the Array.java		1470. Shuffle the Array.java
148. Sort List		148. Sort List
1491. Average Salary Excluding the Minimum and Maximum Salary		1491. Average Salary Excluding the Minimum and Maximum Salary
1492. The kth Factor of n		1492. The kth Factor of n
1493. Longest Subarray of 1's After Deleting One Element.java		1493. Longest Subarray of 1's After Deleting One Element.java
1498. Number of Subsequences That Satisfy the Given Sum Condition		1498. Number of Subsequences That Satisfy the Given Sum Condition
15. 3Sum		15. 3Sum
151. Reverse Words in a String		151. Reverse Words in a String
1528. Shuffle String.java		1528. Shuffle String.java
153. Find Minimum in Rotated Sorted Array		153. Find Minimum in Rotated Sorted Array
154. Find Minimum in Rotated Sorted Array II		154. Find Minimum in Rotated Sorted Array II
1557. Minimum Number of Vertices to Reach All Nodes		1557. Minimum Number of Vertices to Reach All Nodes
1572. Matrix Diagonal Sum		1572. Matrix Diagonal Sum
1603. Design Parking System		1603. Design Parking System
162. Find Peak Element		162. Find Peak Element
1639. Number of Ways to Form a Target String Given a Dictionary		1639. Number of Ways to Form a Target String Given a Dictionary
1641. Count Sorted Vowel Strings		1641. Count Sorted Vowel Strings
1679. Max Number of K-Sum Pairs		1679. Max Number of K-Sum Pairs
169. Majority Element		169. Majority Element
17. Letter Combinations of a Phone Number.java		17. Letter Combinations of a Phone Number.java
172. Factorial Trailing Zeroes.java		172. Factorial Trailing Zeroes.java
1721. Swapping Nodes in a Linked List		1721. Swapping Nodes in a Linked List
1768. Merge Strings Alternately		1768. Merge Strings Alternately
1799. Maximize Score After N Operations		1799. Maximize Score After N Operations
1822. Sign of the Product of an Array		1822. Sign of the Product of an Array
189. Rotate Array		189. Rotate Array
19. Remove Nth Node From End of List		19. Remove Nth Node From End of List
1929. Concatenation of Array		1929. Concatenation of Array
1964. Find the Longest Valid Obstacle Course at Each Position		1964. Find the Longest Valid Obstacle Course at Each Position
203. Remove Linked List Elements.java		203. Remove Linked List Elements.java
2038. Remove Colored Pieces if Both Neighbors are the Same Color.java		2038. Remove Colored Pieces if Both Neighbors are the Same Color.java
205. Isomorphic Strings		205. Isomorphic Strings
2089. Find Target Indices After Sorting Array		2089. Find Target Indices After Sorting Array
209. Minimum Size Subarray Sum.java		209. Minimum Size Subarray Sum.java
2095. Delete the Middle Node of a Linked List		2095. Delete the Middle Node of a Linked List
2130. Maximum Twin Sum of a Linked List		2130. Maximum Twin Sum of a Linked List
214. Shortest Palindrome		214. Shortest Palindrome
2140. Solving Questions With Brainpower		2140. Solving Questions With Brainpower
217. Contains Duplicate		217. Contains Duplicate
219. Contains Duplicate II.java		219. Contains Duplicate II.java
230. Kth Smallest Element in a BST		230. Kth Smallest Element in a BST
231. Power of Two		231. Power of Two
2336. Smallest Number in Infinite Set		2336. Smallest Number in Infinite Set
237. Delete Node in a Linked List		237. Delete Node in a Linked List
24. Swap Nodes in Pairs		24. Swap Nodes in Pairs
242. Valid Anagram		242. Valid Anagram
2529. Maximum Count of Positive Integer and Negative Integer		2529. Maximum Count of Positive Integer and Negative Integer
258. Add Digits		258. Add Digits
2614. Prime In Diagonal		2614. Prime In Diagonal
268. Missing Number		268. Missing Number
2761. Prime Pairs With Target Sum.java		2761. Prime Pairs With Target Sum.java
28. Find the Index of the First Occurrence in a String		28. Find the Index of the First Occurrence in a String
29. Divide Two Integers		29. Divide Two Integers
290. Word Pattern		290. Word Pattern
3. Longest Substring Without Repeating Characters		3. Longest Substring Without Repeating Characters
32. Longest Valid Parentheses.java		32. Longest Valid Parentheses.java
326. Power of Three		326. Power of Three
328. Odd Even Linked List.java		328. Odd Even Linked List.java
33. Search in Rotated Sorted Array		33. Search in Rotated Sorted Array
34. Find First and Last Position of Element in Sorted Array		34. Find First and Last Position of Element in Sorted Array
342. Power of Four		342. Power of Four
349. Intersection of Two Arrays		349. Intersection of Two Arrays
35. Search Insert Position		35. Search Insert Position
383. Ransom Note		383. Ransom Note
389. Find the Difference		389. Find the Difference
392. Is Subsequence		392. Is Subsequence
4. Median of Two Sorted Arrays		4. Median of Two Sorted Arrays
412. Fizz Buzz		412. Fizz Buzz
42. Trapping Rain Water		42. Trapping Rain Water
45. Jump Game II		45. Jump Game II
451. Sort Characters By Frequency		451. Sort Characters By Frequency
46. Permutations.java		46. Permutations.java
4Sum.java		4Sum.java

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