aoj-CGL_2_A.cpp
#include "../include/geometry/intersect.cpp"
using namespace std;
using P = Point<float11>;
using L = Line<float11>;
int main() {
int q;
cin >> q;
while (q--) {
P a, b, c, d;
cin >> a >> b >> c >> d;
L l1(a, b), l2(c, d);
if (!isis_ll(l1, l2))
puts("2");
else if (dot(l1.a - l1.b, l2.a - l2.b) == 0)
puts("1");
else
puts("0");
}
return 0;
}