Battleship Files

Fan has typed in some Battleships grids at /usr/project/courses/cps271/battleships. The format is:

        c <text> - comment                [may be repeated]
        s <row> <col> <type>  - shot      [may be repeated]
        a <counts for the 10 columns> - across sums
        d <counts for the 10 rows> - down sums

The types are ``='' (water), ``<'', ``X'', ``>'' (across ship pieces), ``A'', ``X'', ``V'' (down ship pieces), and ``o'' (sub).

For example:

        c games magazine jan 1996 p 62
        c 1-seaman
        s 5 8 o
        s 7 2 V
        a 4 1 1 1 2 4 2 2 2 1
        d 2 2 1 2 1 1 1 6 1 3

This means:

• s 5 8 o - a submarine at row 5 and column 8
• s 7 2 V - an end of a ship (pointing up) at row 7 column 2

This corresponds to the grid:

        +----------+
        |          | 4
        |          | 1
        |          | 1
        |          | 1
        |       o  | 2
        |          | 4
        | V        | 2
        |          | 2
        |          | 2
        |          | 1
        +----------+
         2212111613

Your program should output:

        =====<XX>=
        ==o=======
        =======o==
        =========A
        =======o=X
        =A=<>====V
        =V=====A==
        ===o===X==
        A======V==
        V=========