Posted on Sat 25 January 2025 in Leetcode • Tagged with dfs-bfs-grid
Question Link : https://leetcode.com/problems/making-a-large-island/
Difficulty: Hard
Premium: False
You are given an n x n binary matrix grid. You are allowed to change at most one 0 to be 1. Return the size of the largest island in grid after applying this operation. An island is …
Posted on Tue 26 November 2024 in Leetcode • Tagged with dfs-bfs-grid
Question Link : https://leetcode.com/problems/number-of-islands/
Difficulty: Medium
Premium: False
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 …
Posted on Tue 26 November 2024 in Leetcode • Tagged with dfs-bfs-grid
Question Link : https://leetcode.com/problems/max-area-of-island/
Difficulty: Medium
Premium: False
You are given an m x n binary matrix grid. An island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) You may assume all four edges of the grid are surrounded by water. The …
Posted on Thu 06 April 2023 in Leetcode • Tagged with dfs-bfs-grid
Question Link : https://leetcode.com/problems/number-of-enclaves/
Difficulty: Medium
Premium: False
You are given an m x n binary matrix grid, where 0 represents a sea cell and 1 represents a land cell. A move consists of walking from one land cell to another adjacent (4-directionally) land cell or …
Posted on Wed 05 April 2023 in Leetcode • Tagged with dfs-bfs-grid
Question Link : https://leetcode.com/problems/number-of-closed-islands/
Difficulty: Medium
Premium: False
Given a 2D grid consists of 0s (land) and 1s (water). An island is a maximal 4-directionally connected group of 0s and a closed island is an island totally (all left, top, right, bottom) surrounded by 1s. Return …