PA03_W2 | Python Fiddle

# Name: James Yang
# VUnetID: yangjh1
# Email: james.h.yang@vanderbilt.edu
# Class: CS 1104- Vanderbilt University
# Section: 1
# Date: 09/21/2020
# Honor Statement:  I attest that I understand the honor code for this class and have neither 
#                   given nor received any unauthorized aid on this assignment.

# Program description: This program calculates the cost of driving given a specific number of miles and a particular gas price.

def calc_cost(miles, miles_per_gallon, dollars_per_gallon):
    """
    Calculates the cost of driving for a specific number of miles based on a car's fuel economy.

Parameters:
      miles:
        The number of miles to calculate.

miles_per_gallon:
        The number of miles a car can travel per gallon.

dollars_per_gallon:
        Cost of fuel per gallon.

Returns:
      The driving cost of a car.
    """
    # Start of statements for the calc_cost function.
    # Computes the cost per mile driven based on user input.
    cost_per_mile = dollars_per_gallon / miles_per_gallon
    
    # Returns the total cost for the number of miles driven.
    return cost_per_mile * miles
    
def print_cost(miles, cost):
    """
    Prints the total cost for the number of miles driven.
    
    Parameters:
      miles:
        The number of miles to calculate.

cost:
        The total cost to calculate.
    """
    # Start of statements for the print_cost function.
    print("The cost for", miles, "miles is ${:.2f}".format(cost))

def main():
    # Add calls to the functions that you defined here.
    # User inputs are entered
    miles_per_gallon = float(input())
    dollars_per_gallon = float(input())
    print("Enter car's miles per gallon:", miles_per_gallon)
    print("Enter cost of gas per gallon:", dollars_per_gallon)
    
    # Total cost is calculated under different numbers of miles.
    miles = 10
    cost = calc_cost(miles, miles_per_gallon, dollars_per_gallon)
    print_cost(miles, cost)
    
    miles = 50
    cost = calc_cost(miles, miles_per_gallon, dollars_per_gallon)
    print_cost(miles, cost)
    
    miles = 400
    cost = calc_cost(miles, miles_per_gallon, dollars_per_gallon)
    print_cost(miles, cost)
    # Remember, statements must be indented once to be part of this function.

# DO NOT CHANGE ANYTHING BELOW THIS COMMENT.
if __name__ == '__main__':
    main()

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