Cant understand how to code this

#1

can not think how to code of upper lower case

#2

you will have to just tell whether the entered character by user is lowercase, UPPERCASE or Invalid character…

reference code :

#include<iostream>
using namespace std;
int main() {
	char ch;
	cin>>ch;
	if(ch>='a' && ch<='z'){
		cout<<"lowercase"<<endl;
	}else if(ch>='A' && ch<='Z'){
		cout<<"UPPERCASE"<<endl;
	}else{
		cout<<"Invalid"<<endl;
	}
	return 0;
}

i hope this help, if you have further doubt feel free to ask

#3

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