How do i receive an integer and return true if is greater than or equal to zero; or false otherwise?

Question

the fuction is esPostivo()

Answer 1

OlVeRaS94HD

bool esPostivo(int num)
{
if(num >= 0)
{
return true;
}
else
{
return false;
}
}

Answer 2

int num;
cin >> num;

if(num >= 0){
return true;
}else{
return false
}