input while/scanf

HEY there,

Just wrote my massive question which I lost when the page refreshed. so annoying. but in short:

1. How do I ensure that only 3 values are inputted into the system? I thought I could do it like this: while(scanf("%d%d%d",&x,&y,&z)==3)
doesn't seem to be working

2. How do I allow an infinite number of inputs??? (e.g: running sum of numbers).

3. What's wrong with my code?! need to find max of 3 values, by using function.


Thanks guys!

Code:

#include <stdio.h>
#include <stdlib.h>


int int_max_3(int, int, int);






int
main(int argc, char **argv) {
    
    int x, y, z;
    printf("Enter three ints: ");
    while(scanf("%d%d%d",&x,&y,&z)==3)    
    printf("x=%d y=%d z=%d", x, y, z);
    int answer = int_max_3(x, y, z);    
    printf("The answer is %d.", answer);
    
    return 0;
}




int
int_max_3(int a, int b, int c) {
    int answer;
        
    if ((a>b) && (b>c))
        answer = a;
    else if ((b>a) && (b>c))
        answer = b;
    else
        answer = c;
    
    return answer;
}

Well, if you had better indentation, and uses braces all the time, you would see this.

Code:

int
main(int argc, char **argv) {
    
    int x, y, z;
    printf("Enter three ints: ");
    while(scanf("%d%d%d",&x,&y,&z)==3) {
        printf("x=%d y=%d z=%d", x, y, z);
    }
    int answer = int_max_3(x, y, z);    
    printf("The answer is %d.", answer);
    
    return 0;
}

You're only printing the 3 integers when everything was read correctly.
It only gets to the int_max_3 call when scanf FAILS to read 3 integers.