Given an m x n 2D grid map of '1’s which represents land and '0’s that represents water return the number of islands (surrounded by water and formed by connecting adjacent lands in 2 directions - vertically or horizontally).

Given an m x n 2D grid map of '1’s which represents land and '0’s that represents water return the number of islands (surrounded by water and formed by connecting adjacent lands in 2 directions - vertically or horizontally).

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, data-structure, topic-specific, data-structures, algorithms

参考答案摘要

Assume that the boundary cases - which are all four edges of the grid are surrounded by water. Constraints are: m == grid.lengthn == grid[i].length1 Example: Input: grid = [[“1” , “1” , “1” , “0” , “0...

本题提供 STAR 原则详细解答和技术解析，登录匠人学院学习中心即可查看完整答案。