就说为什么一直红一个点

using namespace std;
int main()
{
  int a,b,c;
  cin>>a;
  if(a%2==0 and a!=2){
  	cout<<"YES, you can divide the watermelon into two even parts."<<endl;
  }else{
  	cout<<"NO, you can't divide the watermelon into two even parts."<<endl;
  }
  return 0;
}

气死偶咧！！！

2不是偶数！

using namespace std;
int main(){
  int a,b,c;
  cin>>a;
  if(a%2==0 && a!=2){
  	cout<<"YES, you can divide the watermelon into two even parts.";
  }else{
  	cout<<"NO, you can't divide the watermelon into two even parts.";
  }
  return 0;
}

我解释不清2不是偶数的道理。