Permutation of a Given Values.

Q. Let given values are 1,2,3.
The permutations are
123
132
213
231
312
321

Source Code is:-


#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
int main()
{
    vector<char> v;
    int n;
    char num;
    cout<<"\n Emter N::";
    cin>>n;
    cout<<"\n Enter Elements:";
    for(int i=0;i<n;i++)
       {
        cin>>num;
        v.push_back(num);
       }
    cout<<"\n Elements Are::";
    for(int i=0;i<v.size();i++)
        cout<<" "<<v[i];
    cout<<"\n Permutations Are\n";
    do
    {
      for(int i=0;i<v.size();i++)
    {   if(i%5==0)
        cout<<"\n";
        cout<<" "<<v[i];
    }
    cout<<"\t";
    }while(next_permutation(v.begin(),v.end()));
    return 0;
}