Segmentation Faults are hard to find

[Lindley]

Use code tags to preserve indentation.

If you're on a Linux machine, run the program through valgrind. It'll pinpoint the first suspicious line a lot better than just running it straight.

If not, then at least run it in a debugger. Might learn something that way.

Got to say, hard-coding 3s, 4s, and 5s everywhere isn't the way to go. Not really surprised you ran into trouble, relying on your own memory to keep all the array sizes updated like that. You should stick those values into variables once and forget about them, or use strlen() or somesuch. Anything but hard-coding.