Editorial

Use a conditional statement to find the sign of the number.

Algorithm realization

Read the input value of $n$ .

scanf("%d",&n);

Determine the sign of the number: positive, negative or zero.

if (n > 0) puts("Positive"); else
if (n < 0) puts("Negative"); else
           puts("Zero");

Java realization

import java.util.*;

public class Main
{
  public static void main(String []args)
  {
    Scanner con = new Scanner(System.in);
    int n = con.nextInt();

    if (n > 0) System.out.println("Positive"); else
    if (n < 0) System.out.println("Negative"); else
               System.out.println("Zero");

    con.close();
  }
}

Python realization

Read the input value of $n$ .

n = int(input())

Determine the sign of the number: positive, negative or zero.

if n > 0: print("Positive")
elif n < 0: print("Negative")
else: print("Zero")