2 lists sort

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

void swap_list(char **list1, char *list2, int i, int j) {
  char *t1;
  char t2;
  t1 = list1[i];
  t2 = list2[i];
  list1[i] = list1[j];
  list2[i] = list2[j];
  list1[j] = t1;
  list2[j] = t2;
}

void quick_sort(char **list1, char *list2, int left, int right)
{
  int i, j;
  char *t, *middle;

  if (left >= right) return;
  middle = list1[(left + right) / 2];
  for (i = left, j = right;; i++, j--) {
    while (strcmp(list1[i], middle) < 0)
      i++;
    while (strcmp(list1[j], middle) > 0)
      j--;
    if (i >= j) break;
    swap_list(list1, list2, i, j);
  }
  quick_sort(list1, list2, left, i - 1);
  quick_sort(list1, list2, j + 1, right);
}

int main(void) {
  char *list1[] = {
    "Tottori", "Kochi", "Nara", "Wakayama", "Kagawa", "Shimane", "Okinawa",
    "Shiga", "Fukui", "Tokushima", "Nagasaki", "Saga", "Yamanashi", "Ehime",
    "Yamaguchi", "Mie", "Oita", "Iwate", "Miyazaki", "Ishikawa", "Toyama",
    "Akita", "Gifu", "Kyoto", "Okayama", "Aomori", "Kumamoto", "Kagoshima",
    "Gunma", "Hyogo", "Fukushima", "Miyagi", "Yamagata", "Nagano", "Hiroshima",
    "Ibaraki", "Tochigi", "Niigata", "Shizuoka", "Osaka", "Saitama", "Aichi",
    "Chiba", "Kanagawa", "Fukuoka", "Hokkaido", "Tokyo"
  };
  char list2[] = "iinauaawrs3aaodr keomaepk s ndoinmdoo diAkaeeh";
  int size = sizeof(list2) / sizeof(char);
  int i;

  quick_sort(list1, list2, 0, size - 1);
  for (i = 0; i < size; i++) {
    printf("%s\n", list1[i]);
  }
  printf("%s\n", list2);
  return 0;
}