So the problem is to illustrate how the selection sort algorithm behaves on two inputs: A={1,2,3,4,5} and A={5,4,3,2,1}. I need to state the output generated and then write a function for Big Oh notation. The algorithm is: Code: #include <iostream> using namespace std; void printout (int A [], int n) { for (int i=0; i<n; ++i) cout << A[i] << " "; cout<< '\n'; } void selectionSort (int A[], int n) { for (int k=0; k<n-1; ++k) { int tmp, index = k; for (int i=k+1; i < n; ++i) if (A[i] < A[index]) index=i; tmp= A[k]; // swap A[k] = A[index]; A [index] = tmp; printout (A,n); } } int main () { system("pause"); return 0; } I thought i would need to insert a 5 in int A[5] for there being 5 vectors slots. I can get it to run and compile, but then nothing is outputted. What am I doing wrong?

In Code: int main () { system("pause"); return 0; } You are not doing anything but pausing. Maybe you need to set up variables, call a function or two? Jim