write c++ program to read the input and check whether the number is positive, negative, or zero using the switch statement only

#include <iostream>
using namespace std;
int main()
{
       int num;

    cout<<"Enter any number: ";
    cin>>num;

    switch (num>0)
    {
        // Num is positive
        case 1:
            cout<<num<<" is positive.";
        break;
        // Num is either negative or zero
        case 0:
            switch (num < 0)
            {
                case 1: 
                    cout<<num<<" is negative.";
                    break;
                case 0:
                    cout<<num<<" is zero.";
                    break;
            }
        break;
    }

    return 0;
}