Lexiographic series

Sir.........
I wanted your help in coding a lexiographic sorting.please do help me

 

Is it sorting of strings???

 

yeah....
it is the sorting of strings according to their alphabetic order.do you hav any logic for doing the same relating it with the bubble sort.if yes please do help me....

 

Code:

include<stdio.h>
int main()
{ 
 int i,j,n;  
char str[20][20],temp[20];
  puts("Enter the no. of string to be sorted"); 
 scanf("%d",&n);
  for(i=0;i<=n;i++)      
gets(str[i]);
  for(i=0;i<=n;i++)    
  for(j=i+1;j<=n;j++)
{         
  if(strcmp(str[i],str[j])>0)
{              
 strcpy(temp,str[i]);            
  strcpy(str[i],str[j]);            
  strcpy(str[j],temp);           
}    
  } 
 printf("The sorted string\n");
  for(i=0;i<=n;i++)    
  puts(str[i]);  
return 0;
}

 

thank you so much .........