Cisco OA Question 2024 May | Graphs & DFS | on-campus

Question: Number of Islands Problem Statement Given an m x n 2D binary grid grid which represents a map of '1's (land) and '0's (water), return 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 surrounded by water. Constraints m == grid.length n == grid[i].length 1 <= m, n <= 300 grid[i][j] is '0' or '1'. Examples Example 1: ...