cpp/CPrimerPlus6E/Ch08/newguess.c

/* newguess.c -- an inefficient but improved number-guesser */
#include <stdio.h>
int main(void)
{
    int guess = 1;
    char response;
    
    printf("Pick an integer from 1 to 100. I will try to guess ");
    printf("it.\nRespond with a y if my guess is right and with");
    printf("\nan n if it is wrong.\n");
    printf("Uh...is your number %d?\n", guess);
    while ((response = getchar()) != 'y')     /* get response */
    {
        if (response == 'n')
            printf("Well, then, is it %d?\n", ++guess);
        else
            printf("Sorry, I understand only y or n.\n");
        while (getchar() != '\n')
            continue;                 /* skip rest of input line */
    }
    printf("I knew I could do it!\n");
    
    return 0;
}