885. Spiral Matrix III | Simulation | Matrix |Leetcode Daily Challenge|DSA|Hindi

In this video, I'll be solving the LeetCode problem titled "Spiral Matrix III" (Problem #885). This problem is a unique challenge where you're given a grid with a specified number of rows and columns, and you need to traverse this grid in a spiral order starting from a given position. The goal is to return the order in which you visit each cell in the grid, covering all cells while moving in a spiral pattern.

We'll begin by discussing the problem statement and breaking down the requirements. Then, I'll explain the approach to solve this problem, including how to use direction arrays to navigate the grid in a spiral order, how to handle boundary conditions, and how to ensure all cells are visited efficiently.

In the algorithm, we'll initialize at the starting position and move in the right, down, left, and up directions in a repeated pattern. Each time we complete a full set of directions, we increment the number of steps we take in each direction. This approach ensures that we cover all cells in the grid in the required spiral order. I'll also walk through the code implementation in Java, highlighting key parts of the code and explaining how each part contributes to the solution.

Whether you're preparing for coding interviews or looking to enhance your problem-solving skills, this video will provide valuable insights into working with grid-based problems and navigating 2D arrays.

Key Concepts Covered:
Spiral order traversal of a matrix
Grid navigation using direction arrays
Boundary condition handling in grid problems
Efficient grid traversal algorithms
Java programming practices for grid-based problems
Example Explanation:
Let's say we have a grid with 5 rows and 6 columns, and we start at position (1, 4). The goal is to visit each cell in a spiral order, and the output should be an array of coordinates representing the order in which we visit each cell.

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🕒 Timestamps:
0:00 Introduction
0:20 Problem Statement
1:56 Example
4:09 Algorithm
6:42 Code Explanation in Java
9:41 Outro

Thank you for watching! Let me know in the comments if you have any questions or suggestions for future videos.