Hi, I'm a beginner programmer in C programming. I had this problem in my homework. I don't really know how to approach this question. Can anyone please guide me in this question? I'm given a standard telephone pad containing the digits 0 to 9(actually 2 to 9) just like this:
I'm asked to write a program that writes a file every possible seven-letter word corresponding to that number. For example, when I input BIGBOYS, the phone number will generate 2442697.