Validating Credit Card Numbers - HackerRank Solution Python

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Validating Credit Card Numbers is a medium level problem of python on Hackerrank that requires knowledge of regex in python. In this post, you will learn how to solve Hackerrank’s Validating Credit Card Numbers problem and its solution in Python.

Problem Statement and Explanation

verify the credit card number using the following rules:

Input Format

Validating Credit Card Numbers HackerRank Solution

Explanation of Solution

This section compiles a regular expression pattern that will match valid credit card numbers. The pattern is as follows:

The regular expression pattern is compiled into a Pattern object, which is then stored in the variable pattern.

This function takes a credit card number as input and returns Valid if the number is valid, or Invalid if the number is not valid.

The function first uses the pattern object to match the credit card number against the regular expression pattern. If the pattern matches, the function returns Valid. Otherwise, the function returns Invalid.

The main function first prompts the user to enter the number of credit card numbers they want to validate. The function then iterates over the number of credit card numbers and validates each number using the validate_credit_card_number() function. The function then prints the validation result to the console.