Leetcode—695. 岛屿的最大面积【中等】
2025每日刷题(228)
Leetcode—695. 岛屿的最大面积
实现代码
class Solution {
public:int maxAreaOfIsland(vector<vector<int>>& grid) {const int m = grid.size();const int n = grid[0].size();int blocks = 0;function<void(int, int)> dfs = [&](int i, int j) {if(i < 0 || i == m || j < 0 || j == n) {return;}if(grid[i][j] != 1) {return;}grid[i][j] = 2;++blocks;dfs(i, j + 1);dfs(i + 1, j);dfs(i, j - 1);dfs(i - 1, j);};int maxans = 0;for(int i = 0; i < m; ++i) {for(int j = 0; j < n; ++j) {blocks = 0;if(grid[i][j] == 1) {dfs(i, j);maxans = max(maxans, blocks);}}}return maxans;}
};
运行结果
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