The Number of Provinces problem (LeetCode75) is a classic graph problem that tests your understanding of DFS/BFS, adjacency matrices and connected components. It is commonly asked in technical interviews because it evaluates problem-solving skills in graph traversal and connectivity analysis. In this blog, we will break down the problem, provide examples, explain the Python solution … Read more
The Binary Tree Right Side View problem (LeetCode75) is a popular binary tree challenge that requires you to determine what a binary tree looks like when viewed from the right side. It is a common coding interview question because it tests your ability to use level-order traversal (BFS) or depth-first traversal (DFS) efficiently. In this … Read more
The Leaf-Similar Trees problem (LeetCode75) is a popular binary tree challenge that tests your understanding of tree traversal, recursion, and sequence comparison. It is commonly asked in technical interviews to evaluate your problem-solving skills in working with tree data structures and handling leaf nodes efficiently. In this blog, we will break down the problem, provide … Read more
The Lowest Common Ancestor of a Binary Tree problem (LeetCode75) is a widely asked question in coding interviews. It tests your understanding of tree traversal, recursion and path comparison. In this blog, we’ll explain the problem, provide a Python solution, a step-by-step explanation with code snippets, analyze complexities and discuss practical applications. Problem Statement Given … Read more
The Longest ZigZag Path in a Binary Tree problem (LeetCode75) is an advanced binary tree challenge that evaluates your understanding of DFS traversal, recursion and path tracking. It is a popular interview question for testing tree traversal strategies and problem-solving skills in scenarios with directional constraints. In this blog, we will break down the problem, … Read more
The Path Sum III problem (LeetCode75) is a classic binary tree challenge that evaluates your ability to traverse trees, track running sums and use hashmaps for efficient counting. This problem is popular in coding interviews because it tests recursion, prefix sums and path tracking in trees. In this blog, we’ll explain the problem, provide Python … Read more
The Count Good Nodes in a Binary Tree problem (LeetCode75) is an insightful challenge for binary tree enthusiasts and coding interview candidates. It helps you understand tree traversal, recursion and path tracking while practicing conditional logic in a tree structure. In this blog, we’ll break down the problem, provide examples, explain a Python solution step … Read more
The Maximum Depth of a Binary Tree problem also known as LeetCode75 is one of the foundational challenges for anyone learning data structures and algorithms. Understanding how to determine the depth of a binary tree not only prepares you for technical interviews but also improves your problem-solving skills with recursive data structures. In this blog, … Read more
The Maximum Twin Sum of a Linked List problem (LeetCode75) is a popular linked list challenge that tests your ability to manipulate lists, use indexing smartly and compute pairwise sums efficiently. It’s commonly asked in coding interviews because it strengthens your problem-solving skills in array manipulation and linked list traversal. In this blog, we’ll cover … Read more
Reversing a linked list is one of the most fundamental problems in data structures and is frequently asked in coding interviews. The Reverse Linked List problem (LeetCode75) tests your understanding of pointer manipulation, iterative traversal and in-place reordering of linked lists. In this blog, we’ll break down the problem, explain the logic, provide a complete … Read more
Linked lists are fundamental data structures in computer science, and manipulating their nodes efficiently is a key skill for coding interviews and software development. The Odd Even Linked List problem (LeetCode75) is a classic exercise that tests your understanding of linked list traversal, pointer manipulation and node reordering. In this blog, we’ll break down the … Read more