Write a program that implements the given algorithm

Assignment Help Computer Engineering

Reference no: EM131832665

Problem

Credit Card Number Check. The last digit of a credit card number is the check digit, which protects against transcription errors such as an error in a single digit or switching two digits. The following method is used to verify actual credit card numbers but, for simplicity, we will describe it for numbers with 8 digits instead of 16:

• Starting from the rightmost digit, form the sum of every other digit. For example, if the credit card number is 4358 9795, then you form the sum 5 + 7 + 8 + 3 = 23.

• Double each of the digits that were not included in the preceding step. Add all digits of the resulting numbers. For example, with the number given above, doubling the digits, starting with the next-to-last one, yields 18 18 10 8. Adding all digits in these values yields 1 + 8 + 1 + 8 + 1 + 0 + 8 = 27.

• Add the sums of the two preceding steps. If the last digit of the result is 0, the number is valid. In our case, 23 + 27 = 50, so the number is valid. Write a program that implements this algorithm. The user should supply an 8-digit number, and you should print out whether the number is valid or not. If it is not valid, you should print the value of the check digit that would make it valid.

Reference no: EM131832665

Questions Cloud

What decisions have made based on the passions in your life : You have considered and written your personal leadership story earlier in the course. Reflect now on how your purpose can be seen throughout your story.

Write an application to pre-sell a limited number of tickets : Write an application to pre-sell a limited number of cinema tickets. Each buyer can buy as many as 4 tickets. No more than 100 tickets can be sold.

Value of the median of an f distribution : What is the value of the median of an F distribution with m and n degrees of freedom when m = n?

Assess the positive and negative effects of peace and war : Assess the positive and negative effects that peace and war, respectively, have on the distribution of foreign aid in the developing country.

Write a program that implements the given algorithm : Write a program that implements this algorithm. The user should supply an 8-digit number, and you should print out whether the number is valid or not.

Find a test procedure : It is desired to find a test procedure for which the expected loss will be a minimum. For what values of X should it be decided that the process is out

Explain how gender impacts the social institution : Describe and analyze the effect that the stratification elements of gender have on that social institution. Include the following in your analysis.

What is the bayes decision when the system breaks down : H 4 of these components are used in part A and the other 32 components are used in part B. what is the Bayes decision when the system breaks down?

Represent locations as integer pairs : Represent locations as integer pairs (x, y). Implement the drunkard's walk over 100 intersections, starting at (0, 0), and print the ending location.

User Account

All Pages