Leetcode

Leetcode exercises that I have attempted.

My Solutions

Leetcode Exercise	Solution	Difficulty
1. Two Sum	Solution (Java)	Easy
3. Longest Substring Without Repeating Characters	Solution (Java)	Medium
4. Median of Two Sorted Arrays	Solution (Python)	Hard
7. Reverse Integer	Solution (Python)	Medium
9. Palindrome Number	Solution (Python)	Easy
13. Roman to Integer	Solution (JavaScript)	Easy
14. Longest Common Prefix	Solution (Python)	Easy
20. Valid Parentheses	Solution (Java)	Easy
21. Merge Two Sorted Lists	Solution (Java)	Easy
24. Swap Nodes in Pairs	Solution (C)	Medium
54. Spiral Matrix	Solution (Java)	Medium
59. Spiral Matrix II	Solution (Java)	Medium
71. Simplify Path	Solution (Java)	Medium
111. Minimum Depth of Binary Tree	Solution (Java)	Easy
215. Kth Largest Element in an Array	Solution (Java)	Medium
258. Add Digits	Solution (C)	Easy
319. Bulb Switcher	Solution (Java)	Medium
343. Integer Break	Solution (Java)	Medium
347. Top K Frequent Elements	Solution (Java)	Medium
389. Find the Difference	Solution (Java)	Easy
392. Is Subsequence	Solution (Java)	Easy
492. Construct the Rectangle	Solution (Java)	Easy
516. Longest Palindromic Subsequence	Solution (Java)	Medium
605. Can Place Flowers	Solution (Java)	Easy
703. Kth Largest Element in a Stream	Solution (Java)	Easy
705. Design HashSet	Solution (Java)	Easy
744. Find Smallest Letter Greater Than Target	Solution (JavaScript)	Easy
746. Min Cost Climbing Stairs	Solution (Java)	Easy
785. Is Graph Bipartite?	Solution (Java)	Medium
852. Peak Index in a Mountain Array	Solution (Java)	Medium
881. Boats to Save People	Solution (Java)	Medium
896. Monotonic Array	Solution (Java)	Easy
905. Sort Array By Parity	Solution (Java)	Easy
946. Validate Stack Sequences	Solution (Java)	Medium
1020. Number of Enclaves	Solution (Java)	Medium
1035. Uncrossed Lines	Solution (Java)	Medium
1046. Last Stone Weight	Solution (Java)	Easy
1254. Number of Closed Islands	Solution (Java)	Medium
1232. Check If It Is a Straight Line	Solution (C)	Easy
1351. Count Negative Numbers in a Sorted Matrix	Solution (JavaScript)	Easy
1372. Longest ZigZag Path in a Binary Tree	Solution (Java)	Medium
1422. Maximum Score After Splitting a String	Solution (Python)	Easy
1431. Kids With the Greatest Number of Candies	Solution (Java)	Easy
1502. Can Make Arithmetic Progression From Sequence	Solution (Python)	Easy
1512. Number of Good Pairs	Solution (Java)	Easy
1557. Minimum Number of Vertices to Reach All Nodes	Solution (Java)	Medium
1572. Matrix Diagonal Sum	Solution (C)	Easy
1603. Design Parking System	Solution (C)	Easy
1637. Widest Vertical Area Between Two Points Containing No Points	Solution (Python)	Medium
1721. Swapping Nodes in a Linked List	Solution (C)	Medium
1732. Find the Highest Altitude	Solution (C)	Easy
1768. Merge Strings Alternately	Solution (JavaScript)	Easy
2130. Maximum Twin Sum of a Linked List	Solution (Java)	Medium
2140. Solving Questions With Brainpower	Solution (Java)	Medium
2218. Maximum Value of K Coins From Piles	Solution (Java)	Hard
2300. Successful Pairs of Spells and Potions	Solution (Java)	Medium
2390. Removing Stars From a String	Solution (Java)	Medium
2405. Optimal Partition of String	Solution (Java)	Medium
2433. Find The Original Array of Prefix Xor	Solution (Java)	Medium
2439. Minimize Maximum of Array	Solution (Java)	Medium
2466. Count Ways To Build Good Strings	Solution (Java)	Medium

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Name		Name	Last commit message	Last commit date
Latest commit History 153 Commits
1. TwoSum		1. TwoSum
1020. Number of Enclaves		1020. Number of Enclaves
1035. Uncrossed Lines		1035. Uncrossed Lines
1046. Last Stone Weight		1046. Last Stone Weight
111. Minimum Depth of Binary Tree		111. Minimum Depth of Binary Tree
1232. Check If It Is a Straight Line		1232. Check If It Is a Straight Line
1254. Number of Closed Islands		1254. Number of Closed Islands
13. Roman to Integer		13. Roman to Integer
1351. Count Negative Numbers in a Sorted Matrix		1351. Count Negative Numbers in a Sorted Matrix
1372. Longest ZigZag Path in a Binary Tree		1372. Longest ZigZag Path in a Binary Tree
14. Longest Common Prefix		14. Longest Common Prefix
1422. Maximum Score After Splitting a String		1422. Maximum Score After Splitting a String
1422. Maximum Score After Splitting a String		1422. Maximum Score After Splitting a String
1431. Kids With the Greatest Number of Candies		1431. Kids With the Greatest Number of Candies
1496. Path Crossing		1496. Path Crossing
1502. Can Make Arithmetic Progression From Sequence		1502. Can Make Arithmetic Progression From Sequence
1512. Number of Good Pairs		1512. Number of Good Pairs
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
1637. Widest Vertical Area Between Two Points Containing No Points		1637. Widest Vertical Area Between Two Points Containing No Points
1704. Determine if String Halves Are Alike		1704. Determine if String Halves Are Alike
1721. Swapping Nodes in a Linked List		1721. Swapping Nodes in a Linked List
1732. Find the Highest Altitude		1732. Find the Highest Altitude
1768. Merge Strings Alternately		1768. Merge Strings Alternately
20. Valid Parentheses		20. Valid Parentheses
21. Merge Two Sorted Lists		21. Merge Two Sorted Lists
2130. Maximum Twin Sum of a Linked List		2130. Maximum Twin Sum of a Linked List
2140. Solving Questions With Brainpower		2140. Solving Questions With Brainpower
215. Kth Largest Element in an Array		215. Kth Largest Element in an Array
2218. Maximum Value of K Coins From Piles		2218. Maximum Value of K Coins From Piles
2300. Successful Pairs of Spells and Potions		2300. Successful Pairs of Spells and Potions
2390. Removing Stars From a String		2390. Removing Stars From a String
24. Swap Nodes in Pairs		24. Swap Nodes in Pairs
2405. Optimal Partition of String		2405. Optimal Partition of String
2433. Find The Original Array of Prefix Xor		2433. Find The Original Array of Prefix Xor
2439. Minimize Maximum of Array		2439. Minimize Maximum of Array
2441. Largest Positive Integer That Exists With Its Negative		2441. Largest Positive Integer That Exists With Its Negative
2466. Count Ways To Build Good Strings		2466. Count Ways To Build Good Strings
258. Add Digits		258. Add Digits
3. Longest Substring Without Repeating Characters		3. Longest Substring Without Repeating Characters
319. Bulb Switcher		319. Bulb Switcher
343. Integer Break		343. Integer Break
347. Top K Frequent Elements		347. Top K Frequent Elements
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
492. Construct the Rectangle		492. Construct the Rectangle
516. Longest Palindromic Subsequence		516. Longest Palindromic Subsequence
54. Spiral Matrix		54. Spiral Matrix
59. Spiral Matrix II		59. Spiral Matrix II
605. Can Place Flowers		605. Can Place Flowers
645. Set Mismatch		645. Set Mismatch
7. Reverse Integer		7. Reverse Integer
703. Kth Largest Element in a Stream		703. Kth Largest Element in a Stream
705. Design HashSet		705. Design HashSet
71. Simplify Path		71. Simplify Path
744. Find Smallest Letter Greater Than Target		744. Find Smallest Letter Greater Than Target
746. Min Cost Climbing Stairs		746. Min Cost Climbing Stairs
785. Is Graph Bipartite		785. Is Graph Bipartite
852. Peak Index in a Mountain Array		852. Peak Index in a Mountain Array
881. Boats to Save People		881. Boats to Save People
896. Monotonic Array		896. Monotonic Array
9. Palindrome Number		9. Palindrome Number
905. Sort Array By Parity		905. Sort Array By Parity
946. Validate Stack Sequences		946. Validate Stack Sequences
.DS_Store		.DS_Store
.gitignore		.gitignore
README.md		README.md

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