Mistake in code

#1

my test cases are not passing with this code
#include
using namespace std;
int main() {
char x;
cin>>x;
if(isupper(x))
cout<<“uppercase”;
else if(islower(x))
cout<<“lowercase”;
else
cout<<“inavalid”;
return 0;
}

#2

@ctarun314_5830ac48ebc3bfd4 hiii check this

#3

@ctarun314_5830ac48ebc3bfd4 In your code you do not write proper style which is in cout as question actually wants
like uppercase wirte as UPPERCASE invalid spelling is wrong

#4

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