Initial commit

1 files changed, 21 insertions, 0 deletions

diff --git a/09_geometry/point_location_test_2189.cpp b/09_geometry/point_location_test_2189.cpp
new file mode 100644
index 0000000..998abb8
--- /dev/null
+++ b/09_geometry/point_location_test_2189.cpp
@@ -0,0 +1,21 @@
+#include <iostream>
+
+struct Point {
+        long long x;
+        long long y;
+        Point operator-(const Point& p) const { return Point{x-p.x, y-p.y}; }
+        long long operator*(const Point& v) { return x * v.y - y * v.x; }
+};
+
+int main() {
+        int t;
+        Point a, b, c;
+        std::cin >> t;
+        for (int i = 0; i < t; i++) {
+                std::cin >> a.x >> a.y >> b.x >> b.y >> c.x >> c.y;
+                auto v = (b-a)*(c-a);
+                if (v > 0) std::cout << "LEFT\n";
+                else if (v < 0) std::cout << "RIGHT\n";
+                else std::cout << "TOUCH\n";
+        }
+}