Complete five challenges across any one of the sites in the Python practice section of this chapter. For example, you can try the following challenges: a) Finding two numbers that add to a specific...

Complete five challenges across any one of the sites in the Python practice section

of this chapter. For example, you can try the following challenges:

a) Finding two numbers that add to a specific sum exactly: https://leetcode.

com/problems/two-sum/

b) Validating credit card numbers: https://www.hackerrank.com/

challenges/validating-credit-card-number/problem