Package g0401_0500.s0463_island_perimeter

Class Solution

java.lang.Object

g0401_0500.s0463_island_perimeter.Solution

public class Solution
extends Object

463 - Island Perimeter\. Easy You are given `row x col` `grid` representing a map where `grid[i][j] = 1` represents land and `grid[i][j] = 0` represents water. Grid cells are connected **horizontally/vertically** (not diagonally). The `grid` is completely surrounded by water, and there is exactly one island (i.e., one or more connected land cells). The island doesn't have "lakes", meaning the water inside isn't connected to the water around the island. One cell is a square with side length 1. The grid is rectangular, width and height don't exceed 100. Determine the perimeter of the island. **Example 1:**  **Input:** grid = \[\[0,1,0,0],[1,1,1,0],[0,1,0,0],[1,1,0,0]] **Output:** 16 **Explanation:** The perimeter is the 16 yellow stripes in the image above. **Example 2:** **Input:** grid = \[\[1]] **Output:** 4 **Example 3:** **Input:** grid = \[\[1,0]] **Output:** 4 **Constraints:** * `row == grid.length` * `col == grid[i].length` * `1 <= row, col <= 100` * `grid[i][j]` is `0` or `1`. * There is exactly one island in `grid`.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	islandPerimeter(int[][] grid)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

islandPerimeter

public int islandPerimeter(int[][] grid)