1 files changed, 0 insertions, 68 deletions
diff --git a/geometry/hpi.cpp b/geometry/hpi.cpp
deleted file mode 100644
index 3509e0e..0000000
--- a/geometry/hpi.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-constexpr ll inf = 0x1FFF'FFFF'FFFF'FFFF;//THIS CODE IS WIP
-
-bool left(pt p) {return real(p) < 0 || 
-					   (real(p) == 0 && imag(p) < 0);}
-struct hp {
-	pt from, to;
-
-	hp(pt a, pt b) : from(a), to(b) {}
-	hp(pt dummy) : hp(dummy, dummy) {}
-
-	bool dummy() const {return from == to;}
-	pt dir() const {return dummy() ? to : to - from;}
-	bool operator<(const hp& o) const {
-		if (left(dir()) != left(o.dir())) 
-			return left(dir()) > left(o.dir());
-		return cross(dir(), o.dir()) > 0;
-	}
-
-	using lll = __int128;
-	using ptl = complex<lll>;
-	ptl mul(lll m, ptl p) const {return m*p;}//ensure 128bit
-
-	bool check(const hp& a, const hp& b) const {
-		if (dummy() || b.dummy()) return false;
-		if (a.dummy()) {
-			ll ort = sgn(cross(b.dir(), dir()));
-			if (ort == 0) return cross(from, to, a.from) < 0;
-			return cross(b.dir(), a.dir()) * ort > 0;
-		}
-		ll y = cross(a.dir(), b.dir());
-		ll z = cross(b.from - a.from, b.dir());
-		ptl i = mul(y, a.from) + mul(z, a.dir()); //intersect a and b
-		// check if i is outside/right of x
-		return imag(conj(mul(sgn(y),dir()))*(i-mul(y,from))) < 0;
-	}
-};
-
-constexpr ll lim = 2e9+7;
-
-deque<hp> intersect(vector<hp> hps) {
-	hps.push_back(hp(pt{lim+1,-1}));
-	hps.push_back(hp(pt{lim+1,1}));
-	sort(all(hps));
-
-	deque<hp> dq = {hp(pt{-lim, 1})};
-	for (auto x : hps) {
-		while (sz(dq) > 1 && x.check(dq.end()[-1], dq.end()[-2]))
-			dq.pop_back();
-		while (sz(dq) > 1 && x.check(dq[0], dq[1]))
-			dq.pop_front();
-
-		if (cross(x.dir(), dq.back().dir()) == 0) {
-			if (dot(x.dir(), dq.back().dir()) < 0) return {};
-			if (cross(x.from, x.to, dq.back().from) < 0)
-				dq.pop_back();
-			else continue;
-		}
-		dq.push_back(x);
-	}
-
-	while (sz(dq) > 2 && dq[0].check(dq.end()[-1], dq.end()[-2]))
-		dq.pop_back();
-	while (sz(dq) > 2 && dq.end()[-1].check(dq[0], dq[1]))
-		dq.pop_front();
-
-	if (sz(dq) < 3) return {};
-	return dq;
-}