Check Case. in c++

 Check Case

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Write a program that takes a character as input and prints either 1, 0 or -1 according to the following rules.

1, if the character is an uppercase alphabet (A - Z)

0, if the character is a lowercase alphabet (a - z)

-1, if the character is not an alphabet

Input format :

Single Character

Output format :

1 or 0 or -1

Constraints :

Input can be any character

Sample Input 1 :

v

Sample Output 1 :

0

Sample Input 2 :

V

Sample Output 2 :

1

Sample Input 3 :

#

Sample Output 3 :

-1

#include<iostream>
using namespace std;
int main() {
    // Write your code here
    char ch;
    cin>>ch;
    if(ch>=65 && ch<=90) cout<<1<<endl;
    else if(ch>=97 && ch<=122)cout<<0<<endl;
    else cout<<-1<<endl;
    
}