Merge branch 'master' into Citrus716-patch-5

Author: phrdang

2_intermediate/chapter11/practice/cashier_job.py

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+# Cashier Job
+# Write a function called calculate_total
+# that will take the number of pennies, nickels, dimes,
+# quarters, and discount rate (i.e. 15 for 15% discount).
+# Return the total amount of money after discount.
+#
+# Print what is returned by the function after it is run with 97 pennies,
+# 13 nickels, 18 dimes, 54 quarters, and 20% discount.
+# Print what is returned by the function after it is run with 32 pennies,
+# 19 nickels, 22 dimes, 71 quarters, and 51% discount.
+
+# write code here

2_intermediate/chapter11/solutions/cashier_job.py

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+# Cashier Job
+# Write a function called calculate_total
+# that will take the number of pennies, nickels, dimes,
+# quarters, and discount rate (i.e. 15 for 15% discount).
+# Return the total amount of money after discount.
+#
+# Print what is returned by the function after it is run with 97 pennies,
+# 13 nickels, 18 dimes, 54 quarters, and 20% discount.
+# Print what is returned by the function after it is run with 32 pennies,
+# 19 nickels, 22 dimes, 71 quarters, and 51% discount.
+
+
+def calculate_total(penny, nickel, dime, quarter, discount):
+    before_discount = (
+        0.01 * penny + 0.05 * nickel + 0.1 * dime + 0.25 * quarter
+    )
+    discount_multiplier = 1 - discount * 0.01
+
+    # Round to 2 decimals since it is money
+    return round(before_discount * discount_multiplier, 2)
+
+
+print(calculate_total(97, 13, 18, 54, 20))
+
+print(calculate_total(32, 19, 22, 71, 51))

2_intermediate/chapter11/solutions/number_mystery_1.py

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+# Number Mystery 1
+# Write a function called num_mystery that takes in 3 integers.
+# The function should calculate the sum of the 3 integers and
+# the difference between the largest integer and the smallest integer.
+# The function should return the product of these two integers you calculated.
+#
+# Hint: You may find it useful to use the max() and min() functions.
+#
+# Use the num_mystery function on 1, 2, 3 and print the result.
+# Use the num_mystery function on 5, 13, 7 and print the result.
+
+
+def num_mystery(first_int, second_int, third_int):
+    # calculate the sum of the 3 numbers
+    sum_of_three = first_int + second_int + third_int
+
+    # calculate the difference between the max and min
+    largest = max(first_int, second_int, third_int)
+    smallest = min(first_int, second_int, third_int)
+    difference = largest - smallest
+
+    # return the product
+    return sum_of_three * difference
+
+
+print(num_mystery(1, 2, 3))  # prints 12
+print(num_mystery(5, 13, 7))  # prints 200