C solution , dump idea , 100MS


  • 1
    H
    int islandPerimeter(int** grid, int gridRowSize, int gridColSize) {
       int grith = 0;
       for(int i = 0; i < gridRowSize; i++)
       {
          for (int j = 0; j < gridColSize; j++)
          {
             if(grid[i][j] == 1)
             {
                if (((i - 1) < 0 ) || (grid[i-1][j] == 0))
                {
                   grith++;
                }
                if (((j - 1) < 0 ) || (grid[i][j-1] == 0))
                {
                   grith++;
                }
                if (((i + 1) >= gridRowSize ) || (grid[i+1][j] == 0))
                {
                   grith++;
                }
                if (((j + 1) >= gridColSize ) || (grid[i][j+1] == 0))
                {
                   grith++;
                }
             }   
          }
       }
       return grith; 
    }
    

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