rotate.cpp

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#include <algorithm>   // for rotate
#include <iostream>    // for cout, endl
#include <iterator>    // for ostream_iterator
#include <vector>      // for vector
 
#include <examples.h>
 
 
int main ()
{
    typedef std::vector<int, std::allocator<int> > Vector;
 
    // Initialize a vector with an array of integers.
    const Vector::value_type arr[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    Vector v (arr + 0, arr + sizeof arr / sizeof *arr);
 
    typedef std::ostream_iterator<int, char, std::char_traits<char> > Iter;
 
    // Print out elements in original (sorted) order.
    std::cout << "Elements before rotate: \n     ";
    std::copy (v.begin (), v.end (), Iter (std::cout, " "));
 
    // Rotate the elements.
    std::rotate (v.begin (), v.begin () + 4, v.end ());
 
    // Print out the rotated elements.
    std::cout << "\n\nElements after rotate: \n     ";
    std::copy (v.begin (), v.end (), Iter (std::cout, " "));
    std::cout << std::endl;
 
    return 0;
}