[M-12]Write a main() program that
prints an n by n square of characters. Divide the square into quarters, and
fill each quarter with a different character. Here is the output when n==15:
*******........ *******........ *******........ *******........ *******........ *******........ *******........ $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo $$$$$$$oooooooo
For extra fun, make n and the characters for each quadrant command line parameters. (But the answer does not do this.)