lassie% a.out
Enter number of objects in the set (n)? 6
Enter number to be chosen (k)? 2
C(6, 2) = 15
lassie% 

lassie% a.out
Enter number of objects in the set (n)? 3
Enter number to be chosen (k)? 2
C(3, 2) = 3
lassie% 

lassie% a.out
Enter number of objects in the set (n)? 12
Enter number to be chosen (k)? 4
C(12, 4) = 495
lassie% exit
lassie%