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LeetCode

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LeetCode Algorithms

(Notes: ":lock:" means you need to subscribe to premium membership from Leetcode)

# Title Solution Difficulty
001 Two Sum C# Easy
002 Add Two Numbers C# Medium
003 Longest Substring Without Repeating Characters C# Medium
004 Median of Two Sorted Arrays C# Hard
005 Longest Palindromic Substring C# Medium
006 ZigZag Conversion C# Easy
007 Reverse Integer C# Easy
008 String to Integer (atoi) C# Easy
009 Palindrome Number C# Easy
010 Regular Expression Matching C# Hard
011 Container With Most Water C# Medium
012 Integer to Roman C# Medium
013 Roman to Integer C# Easy
014 Longest Common Prefix C# Easy
015 3Sum C# Medium
016 3Sum Closest C# Medium
017 Letter Combinations of a Phone Number C# Medium
018 4Sum C# Medium
019 Remove Nth Node From End of List C# Easy
020 Valid Parentheses C# Easy
021 Merge Two Sorted Lists C# Easy
022 Generate Parentheses C# Medium
023 Merge k Sorted Lists C# Hard
024 Swap Nodes in Pairs C# Easy
025 Reverse Nodes in k-Group C# Hard
026 Remove Duplicates from Sorted Array C# Easy
027 Remove Element C# Easy
028 Implement strStr C# Easy
029 Divide Two Integers C# Medium
030 Substring with Concatenation of All Words C# Hard
031 Next Permutation C# Medium
032 Longest Valid Parentheses C# Hard
033 Search in Rotated Sorted Array C# Hard
034 Search for a Range C# Medium
035 Search Insert Position C# Medium
036 Valid Sudoku C# Easy
037 Sudoku Solver C# Hard
038 Count and Say C# Easy
039 Combination Sum C# Medium
040 Combination Sum II C# Medium
041 First Missing Positive C# Hard
042 Trapping Rain Water C# Hard
043 Multiply Strings C# Medium
044 Wildcard Matching C# Hard
045 Jump Game II C# Hard
046 Permutations C# Medium
047 Permutations II C# Medium
048 Rotate Image C# Medium
049 Group Anagrams C# Medium
050 Powx, n C# Medium
051 NQueens C# Hard
052 NQueens II C# Hard
053 Maximum Subarray C# Medium
054 Spiral Matrix C# Medium
055 Jump Game C# Medium
056 Merge Intervals C# Hard
057 Insert Interval C# Hard
058 Length of Last Word C# Easy
059 Spiral Matrix II C# Medium
060 Permutation Sequence C# Medium
061 Rotate List C# Medium
062 Unique Paths C# Medium
063 Unique Paths II C# Medium
064 Minimum Path Sum C# Medium
065 Valid Number C# Hard
066 Plus One C# Easy
067 Add Binary C# Easy
068 Text Justification C# Hard
069 Sqrtx C# Medium
070 Climbing Stairs C# Easy
071 Simplify Path C# Medium
072 Edit Distance C# Hard
073 Set Matrix Zeroes C# Medium
074 Search a 2D Matrix C# Medium
075 Sort Colors C# Medium
076 Minimum Window Substring C# Hard
077 Combinations C# Medium
078 Subsets C# Medium
079 Word Search C# Medium
080 Remove Duplicates from Sorted Array II C# Medium
081 Search in Rotated Sorted Array II C# Medium
082 Remove Duplicates from Sorted List II C# Medium
083 Remove Duplicates from Sorted List C# Easy
084 Largest Rectangle in Histogram C# Hard
085 Maximal Rectangle C# Hard
086 Partition List C# Medium
087 Scramble String C# Hard
088 Merge Sorted Array C# Easy
089 Gray Code C# Medium
090 Subsets II C# Medium
091 Decode Ways C# Medium
092 Reverse Linked List II C# Medium
093 Restore IP Addresses C# Medium
094 Binary Tree Inorder Traversal C# Medium
095 Unique Binary Search Trees II C# Medium
096 Unique Binary Search Trees C# Medium
097 Interleaving String C# Hard
098 Validate Binary Search Tree C# Medium
099 Recover Binary Search Tree C# Hard
100 Same Tree C# Easy
101 Symmetric Tree C# Easy
102 Binary Tree Level Order Traversal C# Medium
103 Binary Tree Zigzag Level Order Traversal C# Medium
104 Maximum Depth of Binary Tree C# Easy
105 Construct Binary Tree from Preorder and Inorder Traversal C# Medium
106 Construct Binary Tree from Inorder and Postorder Traversal C# Medium

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leetcode problems solution with C#

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