Thread: sorting and revise problem

Hello!
I have a question about to determine the word not longer than 9 characters. And it needs the modification of each word by changing lower case to upper (this part is ok working) and then the reverse of the word is concatenated with the word- i can only print out the word. it cant show like (my input : Chester , out FInally RETSEHccHESTER) , show them in unsorted way and sorted way by lexico-graphic ascending order - it is not working too. After that, the program terminates. I have made many attempts at writing this program and this is where i am at right now and it still doesnt work. Thanks in advance for the input.

Code:

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

char toupper(char);
char tolower(char);

int main(void)
{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char toupper(char);
char tolower(char);

int main(void)
{
   char words[10][19];
   char c;
   int i, j;
   int k;
   char swap[10][19];

while ( j != 10)
{
   for ( i = 0; i < 10; i++ )
   {

      printf("enter the character \n");
      fflush(stdout);

      for ( j = 0; j < 10; j++ )
      {

         words[i][j] =fgetc(stdin);
         if ( words[i][j] == '\n' )
         {
            words[i][j] = '\0';
            break;
         }
       }
     }
      printf(" you have entered more than 9 characters! \n"); 
 }

   for ( i = 0; i < 10; i++ )
   {
      for ( j = 0; j < 10; j++ )
      {
         k = (int)(words[i][j]);
         if ( k >= 64 && k <= 91 )
         {
            words[i][j]= tolower(words[i][j] );
         }

         else if ( k >= 96 && k<= 123 )
         {
            words[i][j]= toupper(words[i][j] );
         }
      }
   }

   printf("unsort \n");

   for ( i = 0; i < 10; i++ )
   {
      printf("&#37;s \n ", words[i]);
      fflush(stdout);
   }

printf("Sorted: \n");  
   for ( i=9; i>0; i-- )
   {
      for ( j=0; j<i; j++ )
      {
         if ( strcmp(words[j],words[j+1])>0 )
         {
            strcpy(swap[j],words[j]);
            strcpy(words[j],words[j+1]);
            strcpy(words[j+1],swap[j]);
         }
      }
      printf("%s \n", words[i]);
  } 
 
    return 0;
}


char toupper(char let)
{
   int d;
   d = (int)let;
   let = (char)d-32;
   return let;
}

char tolower(char let)
{
   int d;
   d = (int)let;
   let = (char)d+32;
   return let;
}

I can only see that C seems to be confusing you seriously.