#include <stdio.h>
  #include <string.h>
 
  /* A Quicksort for strings. */
  void quick_string(char items[][10], int count)
  {
    qs_string(items, 0, count-1);
  }
 
  int qs_string(char items[][10], int left, int right)
  {
    register int i, j;
    char *x;
    char temp[10];
 
    i = left; j = right;
    x = items[(left+right)/2];
    do {
      while((strcmp(items[i],x) < 0) && (i < right)) i++;
      while((strcmp(items[j],x) > 0) && (j > left)) j--;
      if(i <= j) {
        strcpy(temp, items[i]);
        strcpy(items[i], items[j]);
        strcpy(items[j], temp);
        i++; j--;
     }
    } while(i <= j);
 
    if(left < j) qs_string(items, left, j);
    if(i < right) qs_string(items, i, right);
  }
int main()
{
  char str[10][10];
 
    int i,n;
printf("how many string u want to enter:\n");
scanf("%d",&n);
for (i=0;i<n;i++)
{printf("enter %d th string::",i+1);
scanf("%s",str[i]);}
    quick_string(str, n);
 
    for(i=0; i<n; i++) printf("%s ", str[i]);
 
    return 0;
  }