Change the algorithm for function comp_use_charge assuming the fee is doubled for any gallons used in excess of 100,000. The basic fee is assessed for the first 100,000 gallons used.

Write an interactive program that contains an if statement that may be used to compute the area of a square (area = side²) or a circle (area = radius²) after prompting the user to type the first character of the figure name (S or C).