Shuffle element in vector with random_shuffle - C++ STL Algorithm

C++ examples for STL Algorithm:random_shuffle

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Description

Shuffle element in vector with random_shuffle

Demo Code

#include <iostream> 
#include <algorithm> // algorithm definitions 
#include <numeric> // accumulate is defined here 
#include <vector> 
#include <iterator> 
using namespace std; 

int main() /*from w ww  . j a va 2 s.  com*/
{ 
   const int SIZE = 10; 
   int a1[ SIZE ] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }; 
   vector< int > v( a1, a1 + SIZE ); // copy of a1 
   ostream_iterator< int > output( cout, " " ); 

   cout << "Vector v before random_shuffle: "; 
   copy( v.begin(), v.end(), output ); 

    random_shuffle( v.begin(), v.end() ); // shuffle elements of v 
   cout << "\nVector v after random_shuffle: "; 
   copy( v.begin(), v.end(), output ); 

}

Result


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