How to solve these coding challenges:

• Write your solution in PyCharm or in your preferred Python IDE.

• If your solution is not correct, then try to understand the error messages, watch the video again, rewrite the solution, and test it again. Repeat this step until you get the correct solution.

• Save the solution in a file for future reference or recap.

Challenge #1

• Write a Python function that takes a list as an argument and returns a new list with unique elements of the first list in the same order.

Sample List : [1,2,3,3,3,3,4,5, 1, 3, 5, 5, 5]

Unique List : [1, 2, 3, 4, 5]

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Challenge #2

• Write a Python function to check whether a number is perfect or not. The function should return True if the number is perfect and False otherwise.

• Perfect numbers: https://www.britannica.com/science/perfect-number

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Challenge #3

• Write a function that returns the factorial of a number n which is the function's argument.

• Factorial: https://en.wikipedia.org/wiki/Factorial

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Challenge #4

• Create a function that takes an integer as an argument and returns True if its a prime number and False otherwise.

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Challenge #5

• Using the function defined in the previous challenge find 5 prime numbers greater than 1,000,000

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Challenge #6

• Write a function called fibo that takes an integer greater than 10 as an argument and returns the Fibonacci series between 0 and the function's argument.

• Fibonacci Series: https://www.mathsisfun.com/numbers/fibonacci-sequence.html

Example: fibo(23) will return 0, 1, 1, 2, 3, 5, 8, 13, 21

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Challenge #7

• Write a function that takes a list as an argument and returns the Equilibrium Index of the list. If there isn't such an index it returns False.

• Equilibrium index: https://www.geeksforgeeks.org/equilibrium-index-of-an-array/

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Challenge #8

Change the solution of the previous challenge so that the function receives a string of numbers separated by a comma.

Example:

nums = '2, 3, 10, 5'

print(equilibrium_index(nums)) # => 2

nums = '3, 3, 10, 5'

print(equilibrium_index(nums)) # => False

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Challenge #9

• Define a function that draws a Christmas tree using asterisks (*). The function takes a single argument, which is the height of the tree.

Example: by calling draw_tree(5) it will display:

*

***

*****

*******

*********

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