Add Leetcode Number Of islands Solution about hacktoberfest HOT 6 OPEN

Hello @nizar787 , I can add that solution, Assign me this issue under hacktoberfest

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please review my code

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This is the code can you please review this code
#include
#include
using namespace std;
class Solution {
public:
int numIslands(vector<vector>& grid) {
if (grid.empty() || grid[0].empty()) {
return 0;
}
int numIslands = 0;
int m = grid.size();
int n = grid[0].size();
for (int i = 0; i < m; i++) {
for (int j = 0; j < n; j++) {
if (grid[i][j] == '1') {
numIslands++;
dfs(grid, i, j);
}
}
}
return numIslands;
}
private:
void dfs(vector<vector>& grid, int i, int j) {
if (i < 0 || i >= grid.size() || j < 0 || j >= grid[0].size() || grid[i][j] != '1') {
return;
}
grid[i][j] = '0';
dfs(grid, i - 1, j);
dfs(grid, i + 1, j);
dfs(grid, i, j - 1);
dfs(grid, i, j + 1);
}
};

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i have solved this problem before,i m attaching my leetcode profile,please assign it to me
https://leetcode.com/pritishyo10/

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I have solved this problem before,I am attaching my leetcode profile,please assign it to me
https://leetcode.com/navya975/

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assigned this problem to me

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