Write a program in C++ to print the result of the specified operations

//Ref: https://bit.ly/2rcvXK5
#include <algorithm>
#include <iostream>
#include <iterator>
#include <vector>
 
// pancake sort template (calls predicate to determine order)
template <typename BidIt, typename Pred>
void pancake_sort(BidIt first, BidIt last, Pred order)
{
    if (std::distance(first, last) < 2) return; // no sort needed
 
    for (; first != last; --last)
    {
        BidIt mid = std::max_element(first, last, order);
        if (mid == last - 1)
        {
            continue; // no flips needed
        }
        if (first != mid)
        {
            std::reverse(first, mid + 1); // flip element to front
        }
        std::reverse(first, last); // flip front to final position
    }
}
 
// pancake sort template (ascending order)
template <typename BidIt>
void pancake_sort(BidIt first, BidIt last)
{
    pancake_sort(first, last, std::less<typename std::iterator_traits<BidIt>::value_type>());
}
 
int main()
{
    std::vector<int> data;
    data = {125, 0, 695, 3, -256, -5, 214, 44, 55};
    std::cout << "Original numbers:\n";
    std::copy(data.begin(), data.end(), std::ostream_iterator<int>(std::cout, " "));
    std::cout << "\n";
 
    pancake_sort(data.begin(), data.end()); // ascending pancake sort
    std::cout << "Sorted numbers:\n";
    std::copy(data.begin(), data.end(), std::ostream_iterator<int>(std::cout, " "));
    std::cout << "\n";
}