Print all permutation in lexicographic order

Question

I want to print all permutation of string in lexicographic order. I wrote this code:

void permute(char *a, int i, int n) {
   if (i == (n-1)) printf(\"\\\"%s         


        

Answer 1

void permute(string str,int index)
{
 if(index ==  str.size())
 {
    cout<>str;
        sort(str.begin(),str.end());
        permute(str,0);
        cout<