How to pack ARGB to one integer uniquely?

Question

I have four integer values (0 - 255) for an ARGB color map.

Now I want to make a unique float or integer of these four integers. Is it possible to do it like the fol

Answer 1

#include
void printBits(string s, int x)
{
    bitset <64> b(x);
    cout<<"\n"<