C program to Check Whether a Number is Positive or Negative or Zero
Last Updated :
13 Dec, 2023
Given a number A. The task is to check whether A is positive, negative or zero. Examples:
Input: A = 2
Output: 2 is positive
Input: A = -554
Output: -554 is negative
In the below program, to find whether A is positive, negative or zero; first the number is taken as input from the user using scanf in , and then A is checked for positive using statement and , and operators. Below is the C program to find whether a number is positive, negative or zero.
C
#include <stdio.h>
int main()
{
int A;
printf ( "Enter the number A: " );
scanf ( "%d" , &A);
if (A > 0)
printf ( "%d is positive." , A);
else if (A < 0)
printf ( "%d is negative." , A);
else if (A == 0)
printf ( "%d is zero." , A);
return 0;
}
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Output:
Enter the number A =: -54
-54 is negative.
Time Complexity: O(1)
Auxiliary Space: O(1)
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