Question

Write a C program to input three different numbers and check whether the input number is positive, negative or zero. ​

Answer 1

#include <stdio.h>

int main()

{

int num1, num2, num3;

printf("Enter three different numbers: ");

scanf("%d %d %d", &num1, &num2, &num3);

if (num1 > 0)

printf("%d is a positive number\\", num1);

else if (num1 < 0)

printf("%d is a negative number\\", num1);

else

printf("%d is zero\\", num1);

if (num2 > 0)

printf("%d is a positive number\\", num2);

else if (num2 < 0)

printf("%d is a negative number\\", num2);

else

printf("%d is zero\\", num2);

if (num3 > 0)

printf("%d is a positive number\\", num3);

else if (num3 < 0)

printf("%d is a negative number\\", num3);

else

printf("%d is zero\\", num3);

return 0;

}

Step-by-step explanation:

Answer 2

#include <stdio.h>

#define check(x) (((x > 0) ? "Positive" : ((x < 0) ? "Negative" : "Zero")))

int main(int argc, char* argv[]) {

//Variables and get user input.

int a,b,c; scanf("%d %d %d", &a, &b, &c);

//Print the result.

printf("%s\\%s\\%s", check(a), check(b), check(c));

return 0;

}