Program to find largest and smallest among 5 numbers without using array

Question

Yesterday I went for an interview where I have been asked to create a program to find largest and smallest among 5 numbers without using array.

I know how to create

Answer 1

Use a sorting network!

#include 
#include 

int main()
{
    int a, b, c, d, e;
    std::cin >> a >> b >> c >> d >> e;

    if (a < b) std::swap(a, b);
    if (d < e) std::swap(d, e);
    if (c < e) std::swap(c, e);
    if (c < d) std::swap(c, d);
    if (b < e) std::swap(b, e);
    if (a < d) std::swap(a, d);
    if (a < c) std::swap(a, c);
    if (b < d) std::swap(b, d);
    if (b < c) std::swap(b, c);

    std::cout << "largest = " << a << '\n';
    std::cout << "smallest = " << e << '\n';
}