All permutations of ABC by use of prev_permutation() : next_permutation « STL Algorithms Helper « C++ Tutorial

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32.13.3.All permutations of ABC by use of prev_permutation()

#include <iostream>

#include <vector>

#include <algorithm>



using namespace std;



int main()

{

  vector<char> v;

  unsigned i;



  for(i=0; i<3; i++) v.push_back('A'+i);



  prev_permutation(v.begin(), v.end());

  

  do {

    for(i=0; i<v.size(); i++)

      cout << v[i] << endl;

  } while(prev_permutation(v.begin(), v.end()));



  return 0;

}

32.13.next_permutation
	32.13.1.	Illustrating the generic next_permutation algorithms
	32.13.2.	next_permutation() and prev_permutation().
	32.13.3.	All permutations of ABC by use of prev_permutation()
	32.13.4.	All permutations of ABC by use of next_permutation()
	32.13.5.	Use next_permutation to permute elements until they are sorted

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