The number of lines that can be printed on a paper depends on the paper size,
the point size of each character in a line, whether lines are double-spaced or
single-spaced, the top and bottom margin, and the left and right margins of
the paper. Assume that all characters are of the same point size, and all lines
are either single-spaced or double-spaced. Note that 1 inch = 72 points.
Moreover, assume that the lines are printed along the width of the paper. For
example, if the length of the paper is 11 inches and width is 8.5 inches, then
the maximum length of a line is 8.5 inches. Write a program that calculates
the number of characters in a line and the number of lines that can be printed
on a paper based on the following input from the user:
a. The length and width, in inches, of the paper
b. The top, bottom, left, and right margins
c. The point size of a line
d. If the lines are double-spaced, then double the point size of each character