| 10 | } |
| 11 | |
| 12 | int f(int i,int j,int n,int m,vector<vector<int>>&grid){ |
| 13 | grid[i][j] = 0; |
| 14 | |
| 15 | int cnt = 1; |
| 16 | if(IsVisit(i+1,j,n,m,grid)){ |
| 17 | cnt+=f(i+1,j,n,m,grid); |
| 18 | } |
| 19 | if(IsVisit(i-1,j,n,m,grid)){ |
| 20 | cnt+=f(i-1,j,n,m,grid); |
| 21 | } |
| 22 | if(IsVisit(i,j+1,n,m,grid)){ |
| 23 | cnt+=f(i,j+1,n,m,grid); |
| 24 | } |
| 25 | if(IsVisit(i,j-1,n,m,grid)){ |
| 26 | cnt+=f(i,j-1,n,m,grid); |
| 27 | } |
| 28 | return cnt; |
| 29 | } |
| 30 | |
| 31 | int maxAreaOfIsland(vector<vector<int>>& grid){ |
| 32 | int n = grid.size(); |