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Exercises for Control Structures

Exercise Set 1: Conditional Statements​

  1. Temperature Advisor Write a program that:

    • Creates a variable for temperature
    • Uses if-elif-else to give different advice based on temperature:
      • Above 30°C: "Stay hydrated!"
      • Between 20°C and 30°C: "Perfect weather!"
      • Between 10°C and 20°C: "Bring a jacket!"
      • Below 10°C: "It's cold!"
    • Includes comments explaining your logic

  2. Grade Calculator Create a program that:

    • Takes a numerical score (0-100)
    • Uses if-elif-else to assign letter grades:
      • A: 90-100
      • B: 80-89
      • C: 70-79
      • D: 60-69
      • F: Below 60
    • Prints both the score and the grade

Exercise Set 2: For Loops​

  1. Counting Practice Write programs for these tasks:

    # a) Print numbers 1 to 5

    # b) Print every even number between 2 and 10

    # c) Print the multiplication table of 5 (5 x 1 to 5 x 5)

  2. List Navigator Given this list:

    fruits = ["apple", "banana", "cherry", "date", "elderberry"]

    # Write code to:
    # a) Print each fruit on a new line
    # b) Print each fruit with its index number (1. apple, 2. banana, etc.)
    # c) Print only fruits with more than 5 letters

Exercise Set 3: While Loops​

  1. Number Guesser Create a simple number guessing game that:

    • Has a secret number (you choose)
    • Keeps asking for guesses until correct
    • Tells if each guess is too high or too low
    • Counts how many guesses were needed

  2. Password Checker Write a program that:

    • Keeps asking for a password until the correct one is entered
    • Gives users only 3 attempts
    • Uses break or continue appropriately
    • Prints appropriate messages for success/failure

Exercise Set 4: Loop Control​

  1. Skip the Bad Stuff Given this list:

    numbers = [1, -2, 3, -4, 5, -6, 7, -8, 9]

    # Write code to:
    # a) Print only positive numbers using continue
    # b) Print numbers until you hit the first negative, then stop using break

  2. Menu System Create a simple menu system that:

    # Shows these options:
    # 1. Say Hello
    # 2. Count to 10
    # 3. Exit

    # - Keeps showing the menu until user chooses Exit
    # - Uses appropriate control structures to handle each choice
    # - Handles invalid inputs gracefully

Exercise Set 5: Combined Concepts​

  1. FizzBuzz Write the classic FizzBuzz program:

    • Count from 1 to 20
    • For multiples of 3, print "Fizz" instead of the number
    • For multiples of 5, print "Buzz" instead of the number
    • For multiples of both 3 and 5, print "FizzBuzz"

  2. Pattern Printer Create a program that prints these patterns using nested loops:

    # Pattern 1:      Pattern 2:
    # *              *****
    # **             ****
    # ***            ***
    # ****           **
    # *****          *