C++打印正负数的和

#include <iostream>
using namespace std;
main()
{
    int count1=0,count2=0,sum1=0,sum2=0;
    float a;
    while(cin>>a&&a==(int)a)
    {
        if(a>0)
        {
            count1++;
            sum1+=a;
        }
        else if(a<0)
        {
            count2++;
            sum2+=a;
        }
        else
        break;
    }
    cout<<"正整数有"<<count1<<"个"<<'\n'<<"负整数有"<<count2<<"个"<<endl;
    cout<<"正整数和为："<<sum1<<'\n'<<"负整数和为："<<sum2<<endl;
}