#include <stdio.h>

void reverser(char *instr);

int main() {

  char *string;

  string = (char *)malloc(sizeof(char)*256);

  printf("Enter your sentence to reverse: ");
  fgets(string, 256, stdin);

  printf("Forward: %s\n", string);

  printf("Backward: ");
  reverser(string);
  printf("\n");

}

void reverser(char *instr) {
  char *temp;

  if ((temp = strchr(instr, ' ')) != NULL) {
    *temp = '\0';
    temp = temp + 1;
    reverser(temp);
  } else {
    temp = strchr(instr, '\n');
    *temp = '\0';
  }
  
  printf("%s ", instr);
}