Credit Project

The Credit project is a program implemented in C that validates credit card numbers based on their structure and the Luhn algorithm. The program prompts the user for a credit card number and determines if it is a valid American Express, MasterCard, or Visa card number. It performs various operations, such as multiplying digits by 2, adding products' digits together, and calculating a checksum. The project demonstrates my skills in C programming, algorithmic thinking, and handling user input. It showcases the application of mathematical algorithms in real-world scenarios and emphasizes the importance of validating credit card numbers for security purposes.