Question

http://pastebin.com/uws2Ts96 – my program so far

I’m attempting to write a C program for my class where the program will display a menu giving 3 options, option 1 will lead to the function named ExtractLargestDigit, and option 2 will lead to DigitOccurrence, and option 3 will end the program.

The problem I’m having is that i want to make it so if the user enters any value other than 1 2 or 3 the program will print out WRONG OPTION and reprint out the menu and ask for another option.

I thought the way I was going about it was correct but every time I run the program it crashes. I believe there’s a problem with my while loop.

I also am having problems with the 2 functions:

For the first function I want to have the user enter in a number, for example 123456, and have the program go through each digit of the number and print out the largest digit, and at what position did it occur in the number. For example in this number (123456) the largest digit is 6 and it is in the ones digit position.

For the second function I want the user to enter in 2 numbers (123423) and (452313) and have the program break the numbers down into their digits, assign them to an array, count the number of times each digit occurs and print out a list from 1-0 with the number of times the number occur along side it.

Any thoughts on these problems would be greatly appreciated.

Answer 1

You must pass the address of the variable using & to scanf:

scanf("%d", &option);

That’s why it crashes when you run it.