#include <stdio.h>
#include <stdlib.h>
#include <string.h>
char* reverseString(char * str);
int main()
{
  char string[] = "String to be reversed";
  char * rev = reverseString(string);
  printf("Reversed String is : %s\n",rev);
  return 0;
}
char* reverseString(char * str)
{
 int length = strlen(str);
 char * rev = (char*)malloc(sizeof(char) * length);
 int i=0,j=0;
 for(i = length-1,j=0;i>=0;i--,j++)
 {
   rev[j] = str[i];
 }
 rev[j] = '\0';
 return rev;
}