Question: Define an ocaml function, called print_checkerboard, that takes two inputs: num_rows and num_cols. It should print out a checkerboard pattern of Xs and underscores, separated

Define an ocaml function, called print_checkerboard, that takes two inputs: num_rows and num_cols. It should print out a checkerboard pattern of Xs and underscores, separated by spaces, having num_rows and num_cols, as illustrated below.

# print_checkerboard "X" "_" 4 3;; X _ X _ X _ X _ X _ X _ - : unit = ()

# print_checkerboard "X" "O" 3 4;; X O X O O X O X X O X O

- : unit = ()

Hint: Use print_alternating to print a single row, then make an appropriate recursive function call.

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