Question

I have the following application written in C:

The application basically presents the user with a word containing one incorrect letter. The user is requested to provide the position of the incorrect letter and replace it with a new letter.

The problem is that if I try to change letter number 4 (array index 3), the new word would be Act instead of Actually. If I do it programmatically, that is, change this line

string[letter_number - 1] = change;

to this

string[letter_number - 1] = 'u'

everything works fine. How can I solve this problem please? Thanks.

Answer 1

Replace your scanf_s by a simple scanf and you will be done. Or else you can use

scanf_s("%d ", ...);

and remove the getchar();

This works for me :

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

int main()
{
  char string[9] = "Actwally";
  int letter_number;
  char change;

  printf("---Spot the Odd Letter Out---\n\n");
  printf("The word below contains one letter which is incorrect:\n\n");
  printf("Word: %s\n\n\n", string);
  printf("Please provide the position of the incorrect letter and propose a new   letter\n\n");
  printf("Position of incorrect letter: ");
  scanf("%d ", &letter_number);
  printf("\nProposed new letter: ");
  scanf("%c ", &change);
  string[letter_number - 1] = change;
  printf("\n\nThe new word looks like this %s\n\n\n", string); 
  if(strcmp("Actually", string) == 0)
  {
    printf("You are right!  Congratulations!");
  }
  else
  {
    printf("Sorry, but you have not guessed the word.  Better luck next time!");
  }
  printf("\n\n\nPlease press enter to exit the program");
  getchar();
}