Homework for lesson 4

homework4.py

# Homework Lesson 4 - Conditionals
from lesson_2.homework import ticket_price

# READ CAREFULLY THE EXERCISE DESCRIPTION AND SOLVE IT RIGHT AFTER IT

# ---------------------------------------------------------------------
# Exercise 1: Temperature Classification
# You're developing a weather application. Write a program that takes 
# a temperature in Fahrenheit as input. If the temperature is above 
# 85°F, print "Hot day ahead!".

temperature = int(input("Enter the temperature in Fahrenheit: "))

# <Your code here>
if temperature >= 85:
    print('Hot day ahead!')

# ---------------------------------------------------------------------
# Exercise 2: Grade Classifier
# As a teacher, you want to automate grading. Write a program that
# takes a student's score as input and prints "Pass" if the score is
# 50 or above, otherwise print "Fail".
# Do not forget that the input() function returns a string value and
# you need to convert it so you can use the value as a number.

# <Your code here>
grade = int(input("Enter your grade: "))
if grade >= 50:
    print('Pass')
else:
    print('Fail')

# ---------------------------------------------------------------------
# Exercise 3: Scholarship Eligibility
# Your university offers scholarships based on academic performance.
# Write a program that takes a student's GPA as input. If the GPA
# is greater than or equal to 3.5, print
# "Congratulations, you're eligible for a scholarship!". If it's
# between 3.0 and 3.49, print "You're on the waiting list."
# Otherwise, print "Keep up the good work."
# Do not forget that the input() function returns a string value and
# you need to convert it so you can use the value as a number.
# The function int() converts the number to an integer, and the function
# float() converts the number to a float.

gpa = float(input("Enter your GPA: "))

# <Your code here>
if gpa >= 3.5:
    print("Congratulations, you're eligible for a scholarship!")
elif gpa >= 3.0:
    print("You're on the waiting list.")
else:
    print("Keep up the good work.")

# ---------------------------------------------------------------------
# Exercise 4: Shopping Discount
# A store is offering a discount on a product. Write a program that
# takes the original price and the discount percentage as input.
# If the discounted price is less than $50, print "Great deal!".
# Otherwise, print "Might want to wait for a better offer."

original_price = float(input("Enter product original price: "))
discount_percentage = float(input("Enter discount percentage: "))
discounted_price = float(original_price * discount_percentage / 100 )

# <Your code here>
if discounted_price < 50:
    print('Great deal!')
else:
    print('Might want to wait for a better offer.')


# ---------------------------------------------------------------------
# Exercise 5: Movie Night Decision
# You and your friends are deciding on a movie to watch. Write a
# program that takes two movie ratings as input. If both ratings
# are above 7, print "Let's watch both!". Otherwise,
# print "Let's just pick one."

# <Your code here>
movie_1 = int(input("Enter the movie number: "))
movie_2 = int(input("Enter the movie number: "))
rate = (movie_1 + movie_2) / 2

if rate >= 7:
    print("Let's watch both!")
else:
    print("Let's just pick one.")

# ---------------------------------------------------------------------
# Exercise 6: Restaurant Recommendation
# You're building a restaurant recommendation system. Write a program
# that takes a person's mood (happy or sad) and hunger level
# (high or low) as input. If they're happy and hungry, recommend
# a fancy restaurant. If they're sad and hungry, recommend comfort food.
# For other cases, recommend a casual dining place.

# <Your code here>
mood = input("Enter your mood: ")
hunger_level = input("Enter your hunger level: ")
if mood == "happy" and hunger_level == "high":
    print ("fancy restaurant")
elif mood == "sad" and hunger_level == "high":
    print ("comfort food")
else:
    print("casual dining place")
# ---------------------------------------------------------------------
# Exercise 7: Exercise 7: Tax Bracket Calculator
# You're building a tax calculation system. Write a program that
# takes a person's annual income as input. Use conditionals
# to determine their tax bracket based on the following rules:

# - If income is less than $40,000, tax rate is 10%.
# - If income is between $40,000 and $100,000 (inclusive), tax rate is 20%.
# - If income is greater than $100,000, tax rate is 30%.

# Remember that a tax rate of 10% can be represented as 10/100 or 0.1

# Print the calculated tax amount for the given income.
annual_income = float(input("Enter your annual income: "))

# <Your code here>
if annual_income < 40000:
    tax_amount = annual_income * 0.1
elif annual_income >= 40000 and annual_income <= 100000:
    tax_amount = annual_income * 0.2
elif annual_income > 100000:
    tax_amount = annual_income * 0.3


# Print tax amount
print(f"Your tax amount is ${tax_amount}")

# ---------------------------------------------------------------------
# Exercise 8: Ticket Pricing System
# You're working on a ticket booking system for an amusement park.
# Write a program that takes a person's age as input and determines
# their ticket price based on the following rules:
# - Children (ages 3 to 12): $10
# - Adults (ages 13 to 64): $20
# - Seniors (ages 65 and above): $15
# Print the calculated ticket price for the given age.

# <Your code here>

age = int(input('Write your age: '))
if age >= 3 and age <=12:
    ticket_price = 10
elif age >= 13 and age <=64:
    ticket_price = 20
elif age >= 65:
    ticket_price = 15
else:
    ticket_price = 0
print(ticket_price)

# ---------------------------------------------------------------------
# Exercise 9: Password Strength Checker
# Create a program that takes a password as input and checks its
# strength based on the following rules:

# If the password is less than 8 characters, print "Weak password."
# If the password is 8 to 12 characters long, print "Moderate password."
# If the password is more than 12 characters, print "Strong password

# You can use len() function to get the length of a given string.

password = input("Enter your password: ")


# <Your code here>
if len(password)  < 8:
    print ('Weak password.')
elif len(password) >= 8 and len(password) <= 12:
    print ('Moderate password.')
elif len(password) > 12:
    print ('Strong password.')
# ---------------------------------------------------------------------
# CHALLENGE (OPTIONAL): Course Enrollment Eligibility
# To solve this exercise, you will need to use the following concepts
# and methods:
# - String method .upper()
# - String slicing
# - if-elif-else conditional statements

#
# You're designing a course enrollment system. Write a program that
# takes a course code and a student's grade as input and determines
# whether the student is eligible to enroll in the course.

# 1. Ask the user to enter a course code (e.g., "CS101", "MATH202", ).
#    All courses ends with "101", "202" or "303". Slice the string
#    to get the last three character of the string to get the course
#    ending:
#
#    Hint:
#    test = "ABCDEF"  # Given this string
#    print(test[-2:])  # It will print "EF"

# 2. Ask the user to enter their grade (e.g., "A", "B", "C", "D", "F").
#    Use .upper() method to convert the course code and grade to uppercase,
#    allowing for case-insensitive input.
#
# Implement the following enrollment rules:
# - For courses with course codes ending in "101", students with
#   grades "A" or "B" are eligible.
# - For courses with course codes ending in "202", students with
#   grades "B" or "C" are eligible.
# - For courses with course codes ending in "303", students with
#   grades "C" or "D" are eligible.

# Print either "You are eligible to enroll." or "You are not eligible to enroll."
course_code = input("Enter the course code: ")
student_grade = input("Enter your grade: ")

# Convert input to uppercase for case-insensitive comparison
course_code = course_code.upper()
student_grade = student_grade.upper()

# Extract the last three characters of the course code (use string slicing)
course_suffix = course_code[-3:]

# Check course code and grade to determine eligibility
if course_suffix == "101":
    if student_grade == "A" or student_grade == "B":
        print("Eligible to enroll")
    else:
        print("Not eligible to enroll")
if course_suffix == "202":
    if student_grade == "B" or student_grade == "C":
        print("Eligible to enroll")
    else:
        print("Not eligible to enroll")
if course_suffix == "303":
    if student_grade == "C" or student_grade == "D":
        print("Eligible to enroll")
    else:
        print("Not eligible to enroll")
else:
    print("Invalid course code.")