двумерный массив, в чем ошибка?

#include <iostream.h>
#include <algorithm>
#include <functional>
int main()
{
        const int arr[] = {1,2,3,4,5,6,-1,-2,-3,-4,-5,-6};
        const int size = sizeof(arr)/sizeof(*arr);
        int plus = std::count_if(arr,arr+size,std::bind2nd(std::greater<int>(),0));
        int minus = std::count_if(arr,arr+size,std::bind2nd(std::less<int>(),0));
        if (plus>minus)
                std::cout<<"plus element is greater!"<<std::endl;
        else
                if (minus>plus)
                        std::cout<<"minus element is greater!"<<std::endl;
                else
                        std::cout<<"plus and minus are equal"<<std::endl;
        return 0;
}

int plus = std::count_if(arr,arr+size,std::bind2nd(std::great er<int>(),0));

int plus = std::count_if(arr,arr+size,std::bind2nd(std::greater<int>(),0));

#include <iostream>