Coding Exercises

Coding Exercises

Beginner

1. Write a Python program that takes two numbers as input and prints their sum.
   • [Watch the Solution Now ✨](https://www.youtube.com/watch?v=CQHXsGnUns0&list=PLKYRx0Ibk7Vi-CC7ik98qT0VKK0F7ikja&index=24
2. Write a function sum3(num1,num3,num3) that takes three numbers as input and returns the sum.

3. Write a function SumNum(num1) that takes a number as input and returns the sum of numbers from 1 to that number (num1).

4. Write a function sumSquares(x) that takes a list of numbers as input and returns the sum of their squares.

5. Write a function order_food that accepts a main_dish, an optional side_dish with a default value of "fries", and an optional drink with a default of "water". Call this function using both positional and keyword arguments.

   • Example: order_food("burger"), order_food("pizza", drink="soda"), and order_food("salad", side_dish="breadsticks", drink="juice")

6. Create a function introduce that takes three parameters: name, age, and city. Set default values for age to 18 and city to “Unknown”. Test calling the function with different combinations of arguments.

   • Example: introduce("John"), introduce("John", 25), introduce("John", 25, "New York")

7. Define a function student_profile that accepts name, grade, and subject with a default value of "Math". Use keyword arguments to call this function in different orders.

   • Example: student_profile(grade="A", name="Emma") and student_profile("Sophia", "B", subject="History")

8. Write a function add_numbers that takes two numbers and returns their sum.

   • Example: add_numbers(3, 5) should return 8

9. Write a function circle_area that calculates the area of a circle given its radius. Use the formula: area = π * radius² (you can use 3.14 for π).

   • Example: circle_area(3) should return approximately 28.26
10. Write a function celsius_to_fahrenheit that takes a temperature in Celsius and converts it to Fahrenheit using the formula: Fahrenheit = Celsius * (9/5) + 32.

• Example: celsius_to_fahrenheit(25) should return 77.0

1. Write a function is_even that takes a number and returns True if the number is even, and False otherwise.

• Example: is_even(4) should return True and is_even(7) should return False

1. Write a function max_of_three that takes three numbers and returns the largest one.

• Example: max_of_three(3, 7, 5) should return 7

1. Write a function simple_interest that calculates simple interest given principal, rate, and time using the formula: interest = (principal * rate * time) / 100.

• Example: simple_interest(1000, 5, 2) should return 100.0

Intermediate

1. Write a function is_prime that checks if a number is prime. A prime number has only two divisors: 1 and itself.

• Example: is_prime(7) should return True and is_prime(8) should return False

1. Write a function factorial that takes a number and returns its factorial. (Factorial of 5 is 5 * 4 * 3 * 2 * 1 = 120)

• Example: factorial(5) should return 120

1. Write a program with three functions:

2. isEven(n): This function takes an integer n as input and returns True if n is even and False otherwise. You can use the modulo operator (%) to check for evenness.
3. printTable(n): This function takes an integer n as input and prints its multiplication table. The table should show the product of n with each number from 1 to 10, formatted like n * i = n * i, where i is the current number in the loop.
4. main: The main program should:
   • Prompt the user to enter an integer.
   • Use the isEven(n) function to check if the entered number is even.
   • If the number is even, call the printTable(n) function to print its multiplication table.
   • If the number is odd, print a message indicating the number is odd and not eligible for printing a table.

Example output:

Enter an integer: 4
4 is even! Here's its multiplication table:
4 * 1 = 4
4 * 2 = 8
4 * 3 = 12
...
4 * 10 = 40

1. Write a function fibonacci that takes a number n and returns the nth number in the Fibonacci sequence.

• Example: fibonacci(5) should return 5 (sequence: 0, 1, 1, 2, 3, 5, …)