🔲 Beginner‑Friendly Guide “Maximum Side Length of a Square” – LeetCode 1292 !Cover image for Beginner‑Friendly Guide ‘Maximum Side Length of a Square’ – LeetC...
Problem Given a string s representing a balanced expression, determine whether it contains any redundant parentheses. A pair of parentheses is redundant if the...
Why My First Approach Was Wrong — and How I Fixed It Problem Clarification Very Important The task is to find the element whose first occurrence index is small...
🧱 Beginner‑Friendly Guide “Maximal Rectangle” – LeetCode 85 C++, Python, JavaScript !Cover image for 🧱 Beginner‑Friendly Guide 'Maximal Rectangle' – LeetCode...
Overview This pattern uses two pointers that start from opposite ends of a data structure array or string and move toward each other. It is mainly used when: -...
!Cover image for LeetCode DSA Series 7: 169. Majority Elementhttps://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gravity=auto,format=auto/https%...
Clone Graph The “Clone Graph” problem asks you to create a deep copy of a connected graph. Each node in the graph contains a value and a list of its neighbors....
Interview Overview Yesterday I attended an interview for a Fresher React Developer role. It was a great learning experience that covered JavaScript, CSS, SQL,...
Problem Overview The task is LeetCode problem 268. Missing Number – given an array nums containing n distinct numbers taken from the range 0, n, find the one n...
Below is a pattern‑selection cheat sheet. For each pattern, ask yourself the listed questions while reading the problem. If you answer YES, that pattern is like...
🧩 Problem Statement Given an array and an integer k, find the k‑th largest element. Example - Input: 3, 2, 1, 5, 6, 4, k = 2 - Output: 5 🧠 My First Thought:...
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