[GeeksforGeeks] print all permutations of a string

Print all permutations of a string

Analysis:
A basic interview question on recursion.

Solution:
#include <stdio.h>
#include <string.h>

void permutation(char *s, int i, int n)
{
if(i == n)
{
printf("%s\n", s);
return;
}

int j;
char temp;
for(j = i; j < n; j++)
{
temp = s[j];
s[j] = s[i];
s[i] = temp;

permutation(s, i+1, n);

        temp = s[j];
s[j] = s[i];
s[i] = temp;

}
}

int main(void) {

char s[] = "abc";
    
        int len = strlen(s);
permutation(s, 0, len);

return 0;
}