Mar 30, 2026 · 4 min read
Two Sum with Hash Map: My Reliable O(n) Pattern
A practical walkthrough of how I use a hash map for Two Sum, including edge-case checks and why one-pass lookup is enough.
AlgorithmsData StructuresLeetCode
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Algorithms and Problem Solving Notes
I document solution strategies, implementation patterns, and lessons from coding problems so I can build a reliable interview and engineering knowledge base.
Mar 30, 2026 · 3 min read
Reduction Operations to Make the Array Elements Equal: Pattern and Complexity Walkthrough
A concise walkthrough for Reduction Operations to Make the Array Elements Equal with clear approach, complexity, and multi-language implementation templates.
AlgorithmsLeetCodeData Structures
Read postMar 30, 2026 · 3 min read
Longest Palindromic Subsequence: Pattern and Complexity Walkthrough
A concise walkthrough for Longest Palindromic Subsequence with clear approach, complexity, and multi-language implementation templates.
AlgorithmsLeetCode
Read postMar 28, 2026 · 5 min read
Valid Parentheses: Why Stack Is the Cleanest Fit
How I approach bracket-matching problems with a stack, and the exact checks that avoid false positives.
AlgorithmsData StructuresLeetCode
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