Day 4 of #tcsnqtwithgfg 🚀 | Smarter Thinking > Harder Thinking | [26-02-2026] Today’s sessions by GeeksforGeeks weren’t just about solving questions — they were about solving them efficiently. 💻 ...

* Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level).

Array manipulation is a fundamental skill in Java programming, especially when dealing with integer arrays. Let's explore a curated list of common array-related problems and their solutions, enhancing ...

You are given an array (ARR) of length N, consisting of integers. You have to find the sum of the subarray (including empty subarray) having maximum sum among all subarrays. A subarray is a contiguous ...