WAP to sort the characters of a string.

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