Untitled

#include <iostream>

using namespace std;

int main ()
{
    int y,x;
    float k,b;
    cout << "k = ";
    cin >> k;
    cout << "b = ";
    cin >> b;
    cout << "x = ";
    cin >> x;
    y=k*x+b;
    if(y>0 && x>0){
        cout << "I";
    }
    if(y>0 && x<0){
        cout << "II";
    }
    if(y<0 && x<0){
        cout << "III";
    }
    if(y<0 && x>0){
        cout << "IIII";
    }
    
}