Thread: Grrr this stuff is still new to me

So I'm still getting used to this programming thing and i can't figure this out so I run here for help. If you choose to help me Thank you in advance
heres the code

Code:

#include <iostream>
using namespace std

int main(int, argc, char*, argv[])
{   int num=0, sum=0, cnt=0, largest=0, negative=0;
    while (cin)
	{ cnt ++;
      cin>>num;

	  cout << "input"<<num<<endl;
	  sum=sum+num // or sum+=num;
      cout <<"sum="<<sum<<endl;
	  if (num > largest)
		  largest + num;
	  if (num<0)
		  negative++;//or negative=negative+1;
	}
	cout,,"largest="<<largest<<"negative="<<negative<<endl;
	<<"sum="<<sum<<endl;
	return 0;
}

and if you can suggest a good book to help me on my way that will also be much appreciated
THANKS!