LeetCode Solutions in Swift

Welcome to the LeetCode Solutions repository! This repository contains solutions to various LeetCode problems, implemented in Swift. It is designed to help you practice and improve your algorithm and problem-solving skills using the Swift programming language.

Contents

The repository is organized into different categories based on the type of problems:

• Array Problems

  • 75. Sort Colors
  • 535. Encode and Decode TinyURL
  • 554. Brick Wall
  • 912. Sort an Array
  • 122. Best Time to Buy and Sell Stock II
  • 560. Subarray Sum Equals K
  • 1930. Unique Length-3 Palindromic Subsequences
  • 1963. Minimum Number of Swaps to Make the String Balanced
  • 2001. Number of Pairs of Interchangeable Rectangles
  • 2002. Maximum Product of the Length of Two Palindromic Subsequences
  • 2017. Grid Game
  • 438. Find All Anagrams in a String
  • 280. Wiggle Sort
  • 179. Largest Number
  • 118. Pascal's Triangle
  • 523. Continuous Subarray Sum
  • 838. Push Dominoes
  • 187. Repeated DNA Sequences
  • 380. Insert Delete GetRandom O(1)
  • 1461. Check If a String Contains All Binary Codes of Size K
  • 304. Range Sum Query 2D - Immutable
  • 665. Non-decreasing Array
  • 2348. Number of Zero-Filled Subarrays
  • 2405. Optimal Partition of String
  • 1396. Design Underground System
  • 2483. Minimum Penalty for a Shop
  • 799. Champagne Tower
  • 229. Majority Element II
  • 1685. Sum of Absolute Differences in a Sorted Array
  • 2610. Convert an Array Into a 2D Array With Conditions
  • 2870. Minimum Number of Operations to Make Array Empty
  • 2966. Divide Array Into Arrays With Max Difference
  • 1291. Sequential Digits
  • 451. Sort Characters By Frequency

• Two Pointers

  • 80. Remove Duplicates from Sorted Array II
  • 1498. Number of Subsequences That Satisfy the Given Sum Condition
  • 18. 4Sum
  • 189. Rotate Array
  • 1968. Array With Elements Not Equal to Average of Neighbors
  • 881. Boats to Save People
  • 1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
  • 3. Longest Substring Without Repeating Characters
  • 424. Longest Repeating Character Replacement
  • 567. Permutation in String
  • 76. Minimum Window Substring
  • 239. Sliding Window Maximum
  • 20. Valid Parentheses

• Stack Problems

  • 2751. Robot Collisions Hard
  • 726. Number of Atoms

• Graph Problems

  • 323. Number of Connected Components in an Undirected Graph
  • 547. Number of Provinces
  • 994. Rotting Oranges
  • 733. Flood Fill
  • 542. 01 Matrix
  • 130. Surrounded Regions
  • 1020. Number of Enclaves
  • 127. Word Ladder
  • 694. Number of Distinct Islands
  • 1257. Smallest Common Region

• Dynamic Programming Problems

  • 198. House Robber

• Tree Problems

  • 1530. Number of Good Leaf Nodes Pairs

• String Problems

• Linked List Problems

• Sorting and Searching Problems

• Math Problems

• Others