2009/12/19 David Winsemius <dwinsem...@comcast.net>: > > On Dec 19, 2009, at 9:06 AM, baptiste auguie wrote: > >> Dear list, >> >> In a little numbers game, I've hit a performance snag and I'm not sure >> how to code this in C. >> >> The game is the following: how many 8-digit numbers have the sum of >> their digits equal to 17? > And are you considering the number "00000089" to be in the acceptable set? > Or is the range of possible numbers in 10000079:98000000 ? >
The latter, the first digit should not be 0. But if you have an interesting solution for the other case, let me know anyway. I should also stress that this is only for entertainment and curiosity's sake. baptiste ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
