Solution for Exercise 8-12

ex0812

#include <stdio.h>

#define SECRET 17

int main()
{
    int guess;

    printf("Can you guess the secret number: ");
    scanf("%d",&guess);
    if(guess==SECRET)
    {
        puts("You guessed it!");
        return(0);
    }
    else
    {
        puts("Wrong!");
        return(1);
    }
}

Notes

* The "best solution" I referred to in the book is to change only Line 16. The change is from if(guess!=SECRET) to else.

* Both this solution and the solution for Exercise 8-6 are effectively the same, which may make you wonder why bother with the else statement at all. The reason is that by grouping if-else you create a single structure, which is designed to handle only one condition in an absolute way. While some code may contain two separate if statements back-to-back, that setup represents two different evaluations, not a single one. That distinction may be too subtle for you to appreciate at this point in your programming experience, but it's the reason why you use if-else instead of two if statements.

Exercise ex0813 →