Bug in the addition drill program

This is a discussion on Bug in the addition drill program within the C Programming forums, part of the General Programming Boards category; Hi, There is a bug in this addition drill program that I can't fix up. I can't input Y/N characters ...

  1. #1
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    Bug in the addition drill program

    Hi,
    There is a bug in this addition drill program that I can't fix up. I can't input Y/N characters in this program. Is there anyone who can help me to fix it up?


    Code:
    #include <conio.h>
    #include <stdio.h>
    
    main()
    {
     int answer, count;
     int ch;
     ch = getche();
    
     for(count=1; count<11; count++) {
      printf("What is %d + %d? ", count, count);
      scanf("%d", &answer);
      if(answer == count + count) printf("Right!\n");
      else{
       printf("Sorry, you're wrong\n");
       printf("Would you like to try again? Y/N: \n");
       scanf("%c", &ch);
    
       if(ch=='Y') {
        printf("\nWhat is %d + %d? ", count, count);
        scanf("%d", &answer);
        if(answer == count+count) printf("Right!\n");
        else
         printf("Wrong, the answer is %d\n", count+count);
        }
    
       else
        printf("The answer is %d\n", count+count);
       }
      }
      return 0;
     }

    Thanks in advance

  2. #2
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    Please read this:fflush vs gets

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