comefrom: <awangdev>1267. Count Servers that Communicate_2.java
code: private int dfs(int[][] grid, int i, int j, boolean[][] visited) {
  
          if (visited[i][j] || grid[i][j] == 0) return 0; 
              
          visited[i][j] = true;
          int count = 1;
          for (int x = 0; x < grid.length; x++) { 
              count += dfs(grid, x, j, visited);
          }
          for (int y = 0; y < grid[0].length; y++) { 
              count += dfs(grid, i, y, visited);
          }
          return count;
      }
masked: private int sample_funcname ( int [ ] [ ] grid , int i , int j , boolean [ ] [ ] visited ) {
    if ( visited [ i ] [ j ] || grid [ i ] [ j ] == 0 ) return 0 ;
    visited [ i ] [ j ] = true ;
    int count = 1 ;
    for ( int x = 0 ;
    x < grid . length ;
    x ++ ) {
      count += dfs ( grid , x , j , visited ) ;
    }
    for ( int y = 0 ;
    y < grid [ 0 ] . length ;
    y ++ ) {
      count += dfs ( grid , i , y , visited ) ;
    }
    return count ;
  }
  