functions

#include <stdio.h>
 float sum(int  a, float b, short c) {

    int  s = a + b + c;
    char cs[100] = "hello";
    printf("the sum of abc is %d: ", s);
    return s;   // if we used void we dont have to "return"
}

int main() {
    int a;
    float b;
    short c;
    scanf_s("%d %f %hi", &a,  &b, &c);
    sum(a, b, c);
    return 0;
}