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

char reverse(char *s, char *t);


int main()

{

     char source[25];							/* source string */

     char target[25];							/* Target string */

    printf("Enter the source string\n");

     scanf("%s", source);
 
     reverse(source, target);					/* function which passes the base address of source and target */
 
     printf("The target string is %s", target);
     
     getch();
 
}
 
 
 
char reverse(char *s, char *t)			/* Pointers to source and target */

{
 
      int length=0;			
      length=strlen(s)-1;				/* The length of the source string is calculated and then assigned to length */
      printf("Length is %d\n", length);
      printf("%s", s);
      while(length>=0)	
      {
          *t=*(s+length);				/* the last charachter s[length] or *(s+length) is copied to the target */
          printf("%d\n", *(s+length));	
          t++;							/* The pointer is made to point to the next memory address of the target */
          length--;						/* length is reduced so the the next charachter is s[length-1] */
      }
      *t='\0';						   /* The terminating charchter is assigned to the end of the target */	
}