#include <iostream>
#include <vector>
#include <algorithm>
int main() {
std::vector<int> vec = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
// rotate(ForwardIterator first, ForwardIterator middle, ForwardIterator last);
std::rotate(vec.begin(), vec.begin() + vec.size() - 1, vec.end());
for (const auto& element : vec) {
std::cout << element << " ";
}
}
/*
run:
9 0 1 2 3 4 5 6 7 8
*/