how to get all permutations code example

Example 1: all permutations python

import itertools
print(list(itertools.permutations([1,2,3])))

Example 2: how to print all permutations of a string

void permutation(string s)
{
    sort(s.begin(),s.end());
	do{
		cout << s << " ";
	}
    while(next_permutation(s.begin(),s.end()); // std::next_permutation
    
    cout << endl;
}