[C] Telephone Number Word Generator

Koolchamp · 2008-11-05T21:13:12

Here's the setup: Online C class. I'm having issues with one of my assignments Here's the instructions: NOTE - the books it's from is C How to Program 5th edition, chapter 11. /**************************************************************** *Exercise 11.13: Telephone Number Word Generator. Standard * *telephone keypads contain thte digits 0 through 9. The * *numbers 2 through 9 each have three letters associated with * *them, as inidcated by the following table: * *2 A B C 6 M N O * *3 D E F 7 P R S * *4 G H I 8 T U V * *5 J K L 9 W X Y * *Write a C program that, given a seven-digit number, writes * *to a file every possible seven-letter word corresponding to * *that number. There are 2187 (3 to the seventh power) such * *words. Avoid phone numbers with the digits 0 and 1. * * * *Cooper's Instructions: Letters in the output file are * *uppercase. Do not accept phone numbers with a zero or one. * *When the user runs the program, prompt them for a phone * *number. If it is invalid, exit with an appropriate comment. * ****************************************************************/ The part I'm getting stuck at is printing out all of the different word combinations. According to the text for each 7 digit number there are 2187 possible words. I've tried about 3 or 4 different ideas and thrown out about 5 more (all of which involve 5+ for loops and 6+ different counters). So after 5 straight hours of trying to do this assignment I find myself stuck. I'm having trouble visualizing how to go about solving this. So I've come to GameDev for some help. I'm not looking for an answer, but a nudge in the right direction. Something to help me understand how I should go about solving this. Because at the moment all my ideas seem to involve too many for loops, and too many integer counters, and it all just seems so jumbled and messy. I'm also going to email my professor, but he isn't exactly prompt at answering emails. He teachers like 6 other classes so...yeah. Any ideas, hints, tips? Thanks for your time.

For Beginners

Started by Koolchamp November 02, 2008 08:55 PM

20 comments, last by Koolchamp 15 years, 5 months ago

DevFred

840

November 05, 2008 01:17 PM

Quote:Original post by ShawnO
It would be interesting to compare implementations when this assignment is complete.

Yes, but how will we know when this assignment is complete?

Koolchamp

122

Author

November 05, 2008 09:13 PM

Sunday the 16th of November. Over a week away which I'm very thankful for. ^_^

But I had the same idea about comparing what you guys all come up with and with what I hopefully will come up with.

Cheers,Ken(Koolchamp)_____________________________"Choose a job you love, and you will never have to work a day in your life." - Confucius"If you don't have a game industry job and you want to go to E3, do what everyone else does. Launch a game review website and call yourself press." - Mike McShaffry(This is true for me) “…..I'm a geek and jocks are my natural enemy.” – Li C. Kuo

[C] Telephone Number Word Generator

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[C] Telephone Number Word Generator

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