diff --git a/build/CMakeFiles/linelib.dir/src/Line.cpp.o b/build/CMakeFiles/linelib.dir/src/Line.cpp.o
index 98b2e32..82f2484 100644
Binary files a/build/CMakeFiles/linelib.dir/src/Line.cpp.o and b/build/CMakeFiles/linelib.dir/src/Line.cpp.o differ
diff --git a/build/CMakeFiles/main.dir/src/main.cpp.o b/build/CMakeFiles/main.dir/src/main.cpp.o
index d6f2993..9877ccc 100644
Binary files a/build/CMakeFiles/main.dir/src/main.cpp.o and b/build/CMakeFiles/main.dir/src/main.cpp.o differ
diff --git a/build/liblinelib.a b/build/liblinelib.a
index 4395ad9..00c82f7 100644
Binary files a/build/liblinelib.a and b/build/liblinelib.a differ
diff --git a/build/main b/build/main
index 99512ae..a46084b 100755
Binary files a/build/main and b/build/main differ
diff --git a/src/Line.cpp b/src/Line.cpp
index 81f8e41..26dae4c 100644
--- a/src/Line.cpp
+++ b/src/Line.cpp
@@ -36,4 +36,9 @@ double Line::get_vis_start() const
 double Line::get_vis_end() const
 {
 	return vis_end;
+}
+
+bool Line::is_vis()
+{
+	return vis;
 }
\ No newline at end of file
diff --git a/src/Line.h b/src/Line.h
index 65c42aa..74698f3 100644
--- a/src/Line.h
+++ b/src/Line.h
@@ -14,9 +14,11 @@ class Line
 		
 		double get_vis_start() const;
 		double get_vis_end() const;
+		bool is_vis();
 	private:
 		double slope;
 		double ycept;
 		double vis_start;
 		double vis_end;
+		bool vis;
 };
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 45c0d40..91079ae 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -58,7 +58,7 @@ std::vector<Line> construct_HWprob()
 std::vector<Line> visible_lines(std::vector<Line> lines)
 {
 	std::vector<Line> line_sol;
-	
+
 	return line_sol;
 }