the Universe, and Everything using C. Print before scanf?

general
1

Sorry to ask such a noob question but, in Life, the Universe, and Everything using C.

#include<stdio.h>

int main()
{
int howmuch;
` while (howmuch != 42)
{
scanf("%d", &howmuch);
printf("%d\n", howmuch);
}
return 0;
}

Surely as long as I scan first then print it should be correct? I even scanned before the loop. Nothing worked until I scanned before the loop, printed in the loop then scanned again.
Just wondering why this code doesn’t work, again I’m quite new to all this.

Thanks,

2

What happens if the first value itself is 42. You have not initialized “howmuch” . So it may enter the loop first time and then print the first number scanned which is 42 , which it should not .
Otherwise also , this way 42 will always be printed whether 42 is the first number or not . You dont have to print 42 . You have to exit before that .

3

Also use \n instead of n in the printf statement otherwise it will give a WA.