Module leetcode_for_rust::cd0200_number_of_islands

Number of Islands leetcode: number_of_islands

Given a 2d grid map of '1's (land) and '0's (water), count the number of islands. An island is surrounded by water and is formed by connecting adjacent lands horizontally or vertically. You may assume all four edges of the grid are all surrounded by water.

Example1:

Input:
11110
11010
11000
00000

Output: 1

Example2:

Input:
11000
11000
00100
00011

Output: 3

Functions

num_islands

Solutions