What is the error in my code

#1

#include
using namespace std;
int main() {
long long int num, m, n;
cin>>num;
if (num % 2){
m = (num + 1) / 2;
n = (num - 1) / 2;
cout<< 2 * m * n<<" “<< m * m + n * n;
}
else if (num <= 2)
cout<<-1;
else{
m = num / 2;
n = 1;
cout << m m - nn<<” "<< m m + nn;
}
return 0;
}

#2

@coe17b030
Put num <=2 condition before num % 2 condition
if (num <= 2)
cout << -1;
else if ( num % 2 )
.
.

Otherwise your code would fail for inputs like 0 and 2.

#3

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