LeetCode 556 Next Greater Element III (Med, Java, O(n))
Find the Pivot -> Find the Swap Partner -> Swap -> Reverse the right part
Jul 15, 20255 min read2
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LeetCode 519 Random Flip Matrix (Med, Java, O(1))
Problem Description -519. Random Flip Matrix The "Random Flip Matrix" problem requires implementing a class that can randomly flip cells in an m×n binary matrix from 0 to 1. The class should support two operations: Operations: flip(): Randomly selec...
Jul 14, 20253 min read3LeetCode 326 Power of Three - Step by Step Breakdown(Easy, Java, O(n))
LeetCode 326. Power of Three This code determines whether a given integer n is a power of three. A power of three is any integer that can be expressed as (3^k) where (k) is a non-negative integer (e.g., (3^0 = 1), (3^1 = 3), (3^2 = 9), etc.). Step-b...
Jul 10, 20254 min read2
Robot Bounded In Circle: From intuitive to optimized-Top Tech Companies & Investment Bank Tech Assessment (Java, Med)
From O(4n) to O(n) using direction array and mod
Jul 6, 20254 min read6
LeetCode Daily Challenge-3304. Find the K-th Character in String Game I(Easy)
Binary Tree Structure Meets String Transformation
Jul 4, 20256 min read4
LeetCode Daily Challenge-2081. Sum of k-Mirror Numbers
Breaking Down is Easy—The Real Challenge is Speed
Jun 23, 20253 min read2