Develop a console c++application which will accept positive integer depending on the user's choice and will determine the common divisors of the input integer. sample output: How many numbers?4 input number 1: 10 input number 2: 50 input number 3: 15 input number 4: 20

SOURCE: c++ problem

I guess this can be done quite easily with stl sort function:
http://www.sgi.com/tech/stl/sort.html
You can also code a sorting algorithm like quicksort or bubblesort yourself. This is quite fun!