Array with random non duplicate numbers

[alabalanica]

I need to create an array that has a fixed number (for example 30) of random non duplicate integers between 1 and 100. Any help will be greatly appreciated!

[jsmith]

There are many ways to solve this problem. Must you use only arrays? Or can you use STL sets or bitsets?

[alabalanica]

Only arrays. We have not studied STL sets or bitsets.

[firedraco]

Well, I would create the array, then each time you randomly generate a number, loop through the array and check that the number isn't already in there. If it isn't, put it in, otherwise re-randomize it.