A c program to add n numbers

OK, I agree it is too simple. But I really need to brush up my programming skill and anyway I enjoy programming. Or used to.
So just thought to brush up my programming skills, and if it weren’t for that error i posted about previously I got only a few logical errors which I was able to resolve immediately. Time taken to write this program – 1/2 hour. Good enough for touching C after over a year.

A C program to add n numbers which are input by the user and the input ends when the user enters a negative integer, ie any number less than 0. I haven’t added any error checking yet. Maybe I will get around to it.
(I really don’t know if I need this header on top but it has my name in it and will increase search engine rankings, so here it does.)

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blast it, blogger doesn’t seem to allow the lesser than symbol. OK, here is the link to the page on my website.