an example of C++ STL alg rotate

👍 g++ -std=c++11 rotate.cpp
👍 ./a.out
1 2 3 4 5 6 7 
3 4 5 6 7 1 2 
golden thumb
lden thumbgo
A B C D E 
C D E A B 
👍 cat rotate.cpp 
#include <iostream>
#include <vector>
#include <list>
using namespace std;

template<typename T>
void prt(T b, T e) {
  for(; b != e; ++b)
    cout << *b << ' ';
  cout << endl;
}

int main() {
  vector<int> v{1,2,3,4,5,6,7};
  prt(v.begin(), v.end());
  rotate(v.begin(),v.begin()+2,v.end());
  prt(v.begin(), v.end());

  string s{"golden thumb"};
  cout << s << endl;
  rotate(s.begin(),s.begin()+2,s.end());
  cout << s << endl;

  list<char> l{'A','B','C','D','E'};
  prt(l.begin(), l.end());
  auto i = find(l.begin(),l.end(),'C');
  rotate(l.begin(),i,l.end());
  prt(l.begin(), l.end());
}