DIY: Number of Islands
Explore how to count the number of islands in a 2D grid by implementing a function in C#. This lesson helps you understand grid traversal techniques and apply them to solve problems common in coding interviews at companies like Facebook.
We'll cover the following...
We'll cover the following...
Problem statement
Given an m x n 2D grid map of 1's (land) and 0's (water), return the number of islands.
An island is surrounded by water and is ...