You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

题目: You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one…

You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one isla…

原题 原题链接 You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly…

题目要求 You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one…

题目: You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/vertically (not diagonally). The grid is completely surrounded by water, and there is exactly one…

思路:设原始周长为4*节点数,每当出现一次相邻的情况,原始周长会减2.…

详见:https://leetcode.com/problems/island-perimeter/description/ C++: class Solution { public: int islandPerimeter(vector<vector<int>>& grid) { if (grid.empty() || grid[0].empty()) { return 0; } int m = grid.size(), n = grid[0].size(), res =…

Question 463. Island Perimeter Solution 题目大意:给出一个二维数组1表示陆地0表示海,求陆地的周长 思路: 重新构造一张地图grid2即一个二维数组,比原数组大一圈,即长宽都大2 一个点在原地图坐标是(i,j),那么在重新构造的坐标就是(i+1,j+1) 遍历原地图,如果一是陆地,就遍历这个点的周围是否是海,如果是海线周长就加1 Java实现: public int islandPerimeter(int[][] grid) { int total = 0…

[LeetCode]Island Perimeter 解题报告 [LeetCode] https://leetcode.com/problems/island-perimeter/ Total Accepted: 16143 Total Submissions: 28552 Difficulty: Easy Question You are given a map in form of a two-dimensional integer grid where 1 represents land…