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LeetCode Solutions and Explanations Series' Articles
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Leet Code Solutions / Explanations
Grant Riordan
Grant Riordan
Grant Riordan
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Aug 3 '25
Leet Code Solutions / Explanations
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1 min read
C# LeetCode 1: Two Sum - (Easy)
Grant Riordan
Grant Riordan
Grant Riordan
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Aug 3 '25
C# LeetCode 1: Two Sum - (Easy)
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2 min read
C# LeetCode 9: Palindrome Number - (Easy)
Grant Riordan
Grant Riordan
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Aug 4 '25
C# LeetCode 9: Palindrome Number - (Easy)
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2 min read
C# LeetCode 13: Roman To Integer - (Easy)
Grant Riordan
Grant Riordan
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Aug 4 '25
C# LeetCode 13: Roman To Integer - (Easy)
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3 min read
C# LeetCode 14: Longest Common Prefix
Grant Riordan
Grant Riordan
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Aug 4 '25
C# LeetCode 14: Longest Common Prefix
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1 min read
TS LeetCode 20: Valid Parentheses - (Easy)
Grant Riordan
Grant Riordan
Grant Riordan
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Aug 4 '25
TS LeetCode 20: Valid Parentheses - (Easy)
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1 min read
C# LeetCode 21: Merge Two Sorted Lists
Grant Riordan
Grant Riordan
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Aug 4 '25
C# LeetCode 21: Merge Two Sorted Lists
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2 min read
C# LeetCode 28: Find the Index of the the First Occurrence in a String
Grant Riordan
Grant Riordan
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Aug 4 '25
C# LeetCode 28: Find the Index of the the First Occurrence in a String
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1 min read
C# LeetCode 58: Length of Last Word
Grant Riordan
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Aug 4 '25
C# LeetCode 58: Length of Last Word
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1 min read
C# LeetCode: 27 Remove Element
Grant Riordan
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Aug 4 '25
C# LeetCode: 27 Remove Element
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2 min read
C# LeetCode 69: Sqrt(x)
Grant Riordan
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Aug 4 '25
C# LeetCode 69: Sqrt(x)
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2 min read
Python LeetCode 70: Climbing Stairs - (Easy)
Grant Riordan
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Aug 4 '25
Python LeetCode 70: Climbing Stairs - (Easy)
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2 min read
C# LeetCode 100: Same Tree - (Easy)
Grant Riordan
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Aug 4 '25
C# LeetCode 100: Same Tree - (Easy)
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2 min read
C# LeetCode 94: Binary Tree Inorder Traversal - (Easy)
Grant Riordan
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Aug 5 '25
C# LeetCode 94: Binary Tree Inorder Traversal - (Easy)
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2 min read
C# LeetCode 66: Plus One - (Easy)
Grant Riordan
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Aug 5 '25
C# LeetCode 66: Plus One - (Easy)
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2 min read
C# LeetCode 35: Search Insert Position
Grant Riordan
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Aug 5 '25
C# LeetCode 35: Search Insert Position
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2 min read
C# LeetCode 83: Remove Duplicates from Sorted List
Grant Riordan
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Aug 5 '25
C# LeetCode 83: Remove Duplicates from Sorted List
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1 min read
C# LeetCode 101: Symmetric Tree
Grant Riordan
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Aug 5 '25
C# LeetCode 101: Symmetric Tree
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2 min read
C# LeetCode 104: Maximum Depth of Binary Tree - (Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 104: Maximum Depth of Binary Tree - (Easy)
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2 min read
C# LeetCode 88: Merge Sorted Array - (Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 88: Merge Sorted Array - (Easy)
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2 min read
C# LeetCode 112: Path Sum -(Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 112: Path Sum -(Easy)
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2 min read
C# LeetCode 118: Pascal's Triangle - (Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 118: Pascal's Triangle - (Easy)
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1 min read
C# LeetCode 125: Valid Palindrome - (Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 125: Valid Palindrome - (Easy)
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2 min read
C# LeetCode 136: Single Number - (Easy)
Grant Riordan
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Aug 6 '25
C# LeetCode 136: Single Number - (Easy)
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1 min read
LeetCode 168: Excel Sheet Column Title (Easy)
Grant Riordan
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Aug 30 '25
LeetCode 168: Excel Sheet Column Title (Easy)
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1 min read
C# LeetCode 1792: Maximum Average Pass Ratio - (Medium)
Grant Riordan
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Sep 4 '25
C# LeetCode 1792: Maximum Average Pass Ratio - (Medium)
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2 min read
LeetCode 206: Reverse Linked List - (Easy)
Grant Riordan
Grant Riordan
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Sep 16 '25
LeetCode 206: Reverse Linked List - (Easy)
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1 min read
C# LeetCode 268: Missing Number - (Easy)
Grant Riordan
Grant Riordan
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Sep 25 '25
C# LeetCode 268: Missing Number - (Easy)
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2 min read
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