How to generate all permutations of an array in sorted order?

Question

I have an array, and the user can insert a string.

And I have this code:

int main(){
  char anagrama[13];
  cin >> anagrama;
  for(int j = 0; j         


        

Answer 1

#include 
#include 
#include 

using namespace std;

void permute(string select, string remain){
    if(remain == ""){
        cout << select << endl;
        return;
    }
    for(int i=0;remain[i];++i){
        string wk(remain);
        permute(select + remain[i], wk.erase(i, 1));
    }
}

int main(){
    string anagrama;
    cout << "input character set >";
    cin >> anagrama;
    sort(anagrama.begin(), anagrama.end());
    permute("", anagrama);
}

---

Another version

#include 
#include 
#include 
#include 
#include 

using namespace std;

void permute(string& list, int level, vector& v){
    if(level == list.size()){
        v.push_back(list);
        return;
    }
    for(int i=level;list[i];++i){
        swap(list[level], list[i]);
        permute(list, level + 1, v);
        swap(list[level], list[i]);
    }
}

int main(){
    string anagrama;
    vector v;
    cout << "input character set >";
    cin >> anagrama;
    permute(anagrama, 0, v);
    sort(v.begin(), v.end());
    copy(v.begin(), v.end(), ostream_iterator(cout, "\n"));
}