Solution/010

projects/001-taxi-fare/python/main.py

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+'''
+In a particular jurisdiction, taxi fares consist of: 
+- base fare of €4.00, 
+- plus €0.25 for every 140 meters travelled. 
+
+Write a function named **taxi fare** that takes the distance travelled (in kilometers) as its only parameter 
+and returns the total fare as its only result. 
+Write a main program that demonstrates the function.
+'''
+
+def taxi_fare(kilometers):
+    addedtaxes = kilometers // 140
+    taxfare = 0.25 *  addedtaxes
+    totalfare = 4.00 + taxfare
+    return totalfare
+
+kilometers = int(input("Kilometers: "))
+totalfare = taxi_fare(kilometers)
+print("Total fare = ", totalfare)

projects/002-shipping-calculator/python/main.py

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+'''
+An online retailer provides express shipping for many of its items at a rate of: 
+- €10.99 for the first item in an order
+- €2.99 for each subsequent item in the same order. 
+
+Write a function named **shipping calculator** that takes the number of items in the order as its **only parameter**. 
+
+Return the shipping charge for the order as the function’s result. 
+
+Include a main program that reads the number of items purchased from the user 
+and displays the shipping charge.
+'''
+

projects/010-hexadecimal-and-decimal-digits/python/main.py

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+'''
+Write two functions, hex2int and int2hex, that convert between hexadecimal digits (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F) and decimal (base 10) integers.
+The hex2int function is responsible for converting a string containing a single hexadecimal digit to a base 10 integer.
+The int2hex function is responsible for converting an integer between 0 and 15 to a single hexadecimal digit.
+Each function will take the value to convert as its only parameter and return the converted value as its only result.
+Ensure that the hex2int function works correctly for both uppercase and lowercase letters.
+Your functions should display a meaningful error message and end the program if the parameter’s value is outside the expected range.
+'''
+
+def hex2int(initialvalue):
+    convertedvalue = int(initialvalue, 16)
+    return convertedvalue
+
+def int2hex(initialvalue):
+    newvalue = int(initialvalue)
+    convertedvalue = hex(newvalue)
+    return convertedvalue
+
+initialvalue = input("Please insert a value: ")
+question = input("In which base do you want to convert the precedent string? (hex/dec)")
+if question == "hex":
+    finalvalue = int2hex(initialvalue)
+    print("The initial value converted into hexadecimal is: ", finalvalue)
+else:
+    finalvalue = hex2int(initialvalue)
+    print("The initial value converted into decimal is: ", finalvalue)