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    30Count the Islands

    Hardgraphsrecursion

    A map is a list of strings where # is land and . is water. Land squares that touch up, down, left or right belong to the same island (diagonals don't count).

    Write count_islands(grid) that returns how many islands there are.

    Examples

    Example 1
    >>> count_islands(['##..', '##..', '..#.', '...#'])
3
    Example 2
    >>> count_islands(['###', '#.#', '###'])
1

    Run examples checks the 2 examples above. Submit runs all 7 tests, including hidden edge cases, and marks the challenge solved.

    solution.py
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    Test results show up here

    Write count_islands in the editor, then run the examples. Use print() freely: its output is shown for each test.