an example of using STL alg random_shuffle

👍 g++ -std=c++11 random_shuffle.cpp
👍 ./a.out
3 1 4 1 5 9 2 6 
5 6 1 1 4 2 3 9 
1 4 2 9 3 5 1 6 
👍 ./a.out
3 1 4 1 5 9 2 6 
5 6 1 1 4 2 3 9 
1 4 2 9 3 5 1 6 
👍 cat random_shuffle.cpp 
#include <iostream>
#include <vector>
using namespace std;

template<typename C>
void prt(C c) {
  for(auto i=c.begin();i!=c.end();++i) 
    cout << *i << ' ';
  cout << endl;
}

int main() {
  vector<int> v{3,1,4,1,5,9,2,6};
  prt(v);
  random_shuffle(v.begin(), v.end());
  prt(v);
  random_shuffle(v.begin(), v.end());
  prt(v);
}