Code Challenge 1 - Find the 100,000th number

Challenge home: http://cplus.about.com/od/programmingchallenges/a/challenge1.htm

The Challenge

There are a large number of 9 digit integers in the range 123456789 to 987654321 where each digit only appears once. What is the 100,000th number in this sequence?

This is my solution.

Enjoy!