Scenario-Based Coding Questions on If-else in Python

Explanation:

• The program asks the user to input their age and checks if it’s at least 18 years old.
• It then asks if the user has a National ID card, expecting the response to be either “yes” or “no”.
• The program checks two conditions:
  1. whether the user is 18 or older
  2. and whether the user has a National ID card.
• The program will show “You qualify to vote” if both conditions are met.
• The program will display “You can not vote” if either condition is false.

age = int(input("Enter your age: "))
has_id = input("Do you have a National ID card? (yes/no): ").lower()

if age >= 18 and has_id == "yes":
    print("You qualify to vote.")
else:
    print("You can not vote.")

Explanation:

• The program prompts the user to input the number of players.
• It checks if the number of players is divisible by 2 using the modulo operator (%).
• If the number of players is divisible by 2 (i.e., it’s even), the program prints “Game can proceed as there is even number of players.”
• Otherwise, if the number is not divisible by 2 (i.e., it’s odd), the program prints “Game can not proceed as there is odd number of players.”

number = int(input("Enter the number of players: "))

if number % 2 == 0:
    print("Game can proceed as  there is even number of players.")
else:
    print("Game can not proceed as  there is odd number of players.")

Explanation:

• The program starts by asking the user to input a year and converts it into a number using int().
• To check whether a year is a leap year:
• The year should be divisible by 4.
• If it’s divisible by 100, it also needs to be divisible by 400 to qualify.
• If the year satisfies these rules, it’s considered a leap year, and the program outputs the result.
• Otherwise, it states that the year is not a leap year.

leap_check_year = int(input("Enter a year to check: "))

if (leap_check_year % 4 == 0 and leap_check_year % 100 != 0) or (leap_check_year % 400 == 0):
    print(f"{leap_check_year} qualifies as a leap year.")
else:
    print(f"{leap_check_year} does not qualify as a leap year.")

Explanation:

• The program starts by asking the user to enter the day of the week.
• It then checks if the entered day is “Saturday” or “Sunday” using the if condition.
• If the day is either Saturday or Sunday, the program tells you it’s the weekend, so no alarm is needed.
• If the day is not Saturday or Sunday (i.e., it’s a weekday), the program reminds you to set the alarm to wake up early.

day = input("Enter the day: ").lower()

if day == "saturday" or day == "sunday":
    print("It's the weekend! No need for an alarm.")
else:
    print("It's a weekday. Set the alarm!")

Explanation:

• The program begins by asking the user to enter their GPA.
• It checks if the GPA is 2.0 or greater using an if statement.
• If the GPA is 2.0 or more, it prints “You can graduate!”.
• If the GPA is below 2.0, it prints “Your GPA needs to be higher for graduation.”

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

if gpa >= 2.0:
    print("You can graduate!")
else:
    print("Your GPA needs to be higher for graduation.")

Explanation:

• The program starts by asking the user to input their savings amount (how much money they’ve saved).
• It then checks if the savings are between $10 and $100 (inclusive).
• If the savings are within the range, it prints: “Your savings are within the target range.”
• If the savings are not within this range, it prints: “Your savings are out of the target range.”

savings = int(input("Enter your savings amount: "))

if 10 <= savings <= 100:
    print("Your savings are within the target range.")
else:
    print("Your savings are out of the target range.")

Explanation:

• The program asks the user to input their score.
• It then checks the following conditions:
  1. Is the score divisible by both 2 and 3?
  2. Is the score at least 5?
  3. Is the score not equal to 9?
• If the score meets all of these conditions, it tells the user that they are eligible for extra credit.
• If any of the conditions is not met, it encourages the user to keep working on improving their score.

score = int(input("Enter your score: "))

if score % 2 == 0 and score % 3 == 0 and score >= 5 and score != 9:
    print("You're eligible for extra credit!")
else:
    print("You are not eligible for extra credit. Keep working on improving your score!")

Explanation:

• The program asks for the age and the amount spent.
• It checks if the age is over 60 or if the amount spent is more than $100.
• If either condition is true, a 20% discount is given and displays “You are eligible for a 20% discount.”
• Otherwise, it will say: “You are not eligible for a discount.”

age = int(input("Enter your age: "))
purchase = float(input("Enter your purchase amount: "))

if age > 60 or purchase > 100:
    print("You are eligible for a 20% discount.")
else:
    print("You are not eligible for a discount.")

Explanation:

• The program prompts the user to create a password.
• It checks three conditions:
  1. The password should have at least 8 characters.
  2. The first letter must be an uppercase letter.
  3. The last letter must be a lowercase letter.
• If the password satisfies these rules, it displays: “Strong password! Your account is secure.”
• Otherwise, it shows:“Weak password! Follow the rules to improve it.”

password = input("Create your password: ")

has_min_length = len(password) >= 8  # At least 8 characters long
starts_with_uppercase = password[0].isupper()  # First character is uppercase
ends_with_lowercase = password[-1].islower()  # Last character is lowercase

if has_min_length and starts_with_uppercase and ends_with_lowercase:
    print("Strong password! Your account is secure.")
else:
    print("Weak password! Ensure it is at least 8 characters long, starts with an uppercase letter, and ends with a lowercase letter.")

Explanation:

• The program asks you to enter three angles.
• It adds the three angles together.
• Then, it checks if the total is exactly 180 degrees.
• Also, it checks if each angle is greater than 0 (positive).
• If both conditions are true, it tells you that the angles can form a triangle.
• If either condition is false, it tells you that the angles cannot form a triangle.

angle1 = int(input("Enter first angle: "))
angle2 = int(input("Enter second angle: "))
angle3 = int(input("Enter third angle: "))

if  angle1 > 0 and angle2 > 0 and angle3 > 0 and angle1 + angle2 + angle3 == 180:
    print("The angles form a triangle.")
else:
    print("The angles do not form a triangle.")

Explanation:

• The program asks for the following inputs:
  1. Age
  2. Criminal record (Yes/No)
  3. Vision test score (0-10)
  4. Total driving practice hours
• It checks the following conditions:
  1. The age is 18 or older, and there is no criminal record.
  2. The vision test score is 6 or higher, or the age is 21 or older.
  3. The user has at least 20 hours of driving practice.
• If the user has more than 50 driving practice hours, they are automatically eligible.
• If all conditions are true, the program will print “You are eligible for a driving license.”
• If any condition is false, it will print “You are not eligible for a driving license.”

age = int(input("Enter your age: "))
criminal_record = input("Do you have a criminal record? (Yes/No): ").lower()
vision_test_score = int(input("Enter your vision test score (0-10): "))
driving_practice_hours = int(input("Enter your total driving practice hours: "))

if (age >= 18 and not criminal_record == "yes" and (vision_test_score >= 6 or age >= 21) and driving_practice_hours >= 20) or driving_practice_hours > 50:
    print("You are eligible for a driving license.")
else:
    print("You are not eligible for a driving license.")

Explanation:

• The program has a special username (“user123”) and password (“password123”).
• It asks you to enter your username and password.
• It checks if the username and password you entered match the special ones stored in the program.
• If both match, the program says “Login successful.”
• If either one is wrong, the program says “Invalid username or password.”

#values for username and password
username = "user123"
password = "password123"

input_username = input("Enter your username: ")
input_password = input("Enter your password: ")

if input_username == username and input_password == password:
    print("Login successful.")
else:
    print("Invalid username or password.")

Explanation:

• The program first asks for the user’s medical condition.
• It checks if the condition is HIV, Hepatitis, or Malaria.
• Then, it checks the user’s age to ensure they are 18 or older.
• The program also checks if the user has had any recent surgery (within the last 6 months).
• Additionally, it checks if the user is currently taking any medications, ensuring they are approved for donation.
• If any condition is not met (i.e., they have one of the restricted conditions, are under 18, have had recent surgery, or are on unapproved medications), it prints “Not eligible.”
• If all conditions are met, it prints “Eligible to donate.”

medical_condition = input("Enter your medical condition (HIV, Hepatitis, Malaria, None): ").lower()
age = int(input("Enter your age: "))
recent_surgery = input("Have you had any surgery in the last 6 months? (Yes/No): ").lower()
medications = input("Are you currently taking any medications? (Yes/No): ").lower()

if (medical_condition != "hiv" and medical_condition != "hepatitis" and medical_condition != "malaria") and \
   (age >= 18) and \
   (recent_surgery != "yes") and \
   (medications != "yes" or medications == "no"):
    print("Eligible to donate")
else:
    print("Not eligible")

Explanation:

• First, the program asks for the delivery distance and the weight of the package.
• It then checks if the distance is 100 miles or less.
• Next, it checks if the package weight is 50 pounds or less.
• If both checks are true, it says “The Package can be delivered.”
• If either check fails, it says “The Package cannot be delivered.”

distance = int(input("Enter the distance (in miles): "))
weight = int(input("Input the package weight (in pounds): "))

if distance <= 100 and weight <= 50:
    print("The Package can be delivered")
else:
    print("The package cannot be delivered.")
}

Explanation:

• The program asks the user to input the temperature in Celsius.
• It then checks two conditions:
  If the temperature is greater than 35°C (too hot) or less than 0°C (too cold).
• If either condition is true, it prints: “The temperature is not suitable for the plant to grow.”
• If both conditions are false (temperature is between 0°C and 35°C), it prints: “Plant can grow in this temperature.”

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

if temperature > 35 or temperature < 0:
    print("The temperature is not suitable for the plant to grow.")
else:
    print("Plant can grow in this temperature.")