Latest Articles
Discover our latest posts and insights from the Kode$word journey
LeetCode 1980: Find Unique Binary String – Multiple Ways to Generate a Missing Binary Combination
A Complete Guide to Solving “Find Unique Binary String” Using Hashing, Brute Force Thinking, and Cantor’s Diagonalization
LeetCode 875: Koko Eating Bananas – Find the Minimum Eating Speed Using Binary Search
Step-by-Step Explanation of the Koko Eating Bananas Problem with Intuition, Dry Run, and Java Implementation
Peak Index in a Mountain Array – Brute Force to Binary Search (LeetCode 852)
Learn how to find the peak index in a mountain array using multiple approaches including brute force, linear scan, and an optimized binary search solution with O(log n) time complexity.
Find Peak Element – Binary Search Explained with Java Solution (LeetCode 162)
Learn how to efficiently find a peak element in an array using binary search. This guide explains the problem clearly, builds intuition step-by-step, and walks through multiple approaches with a clean O(log n) solution.
Search in Rotated Sorted Array II – Binary Search with Duplicates Explained (LeetCode 81)
Learn how to search an element in a rotated sorted array that may contain duplicate values. This guide explains the intuition, challenges caused by duplicates, and a clean Java solution using modified binary search.
Search in Rotated Sorted Array – Binary Search Explained with Java Solution (LeetCode 33)
Learn how to efficiently search for an element in a rotated sorted array using binary search. This guide explains the intuition, multiple strategies, and a clean Java implementation that achieves O(log n) time complexity.
Check if Binary String Has at Most One Segment of Ones – Java Solution (LeetCode 1784)
Learn how to determine whether a binary string contains only one continuous group of 1s. This article explains the problem clearly, builds the intuition step-by-step, and walks through a clean Java solution with time complexity analysis.
Roman to Integer – Easy Explanation with Java Solution (LeetCode 13)
Learn how to convert Roman numerals into integers using a simple algorithm. This guide explains the intuition, rules of Roman numerals, and a step-by-step Java solution for the popular LeetCode problem.
Minimum Changes to Make Alternating Binary String – LeetCode 1758 Explained
Understand how to convert a binary string into an alternating pattern with the minimum number of flips using a simple greedy approach.