hello people!! i have a problem with this code can you fix it for me?

int anagram(char* word, int cur, int len){  
 int i, b = cur+1;
 char temp=0;
 char arrA[len];

 printf("//%d**%d//", b, cur);

 for (i = 0 ; i < len ; i++) {
  arrA[i] = word[i];
 }

 for (i = cur ; i < len ; i++) {
  if (b < len) {
   printf("%s\n", arrA);
   temp = arrA[cur];
   arrA[cur] = arrA[b];
   arrA[b] = temp;
   b++;
  }

  else if (b == len)
   anagram(arrA, b, len);
 }

 return 0;
}