diff --git a/build/CMakeFiles/HLlib.dir/compiler_depend.internal b/build/CMakeFiles/HLlib.dir/compiler_depend.internal
index 83d8b6d..8022423 100644
--- a/build/CMakeFiles/HLlib.dir/compiler_depend.internal
+++ b/build/CMakeFiles/HLlib.dir/compiler_depend.internal
@@ -220,6 +220,8 @@ CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o
  /usr/include/c++/11.2.0/tr1/poly_hermite.tcc
  /usr/include/c++/11.2.0/tr1/poly_laguerre.tcc
  /usr/include/c++/11.2.0/tr1/riemann_zeta.tcc
+ /usr/include/c++/11.2.0/utility
+ /usr/include/c++/11.2.0/bits/stl_relops.h
  /home/noah/Documents/School/CS-7353_Analysis-of-Algorithms/HW/HW4/src/HiddenLines.h
  /usr/include/c++/11.2.0/set
  /usr/include/c++/11.2.0/bits/stl_tree.h
diff --git a/build/CMakeFiles/HLlib.dir/compiler_depend.make b/build/CMakeFiles/HLlib.dir/compiler_depend.make
index bbfcff4..ff7e373 100644
--- a/build/CMakeFiles/HLlib.dir/compiler_depend.make
+++ b/build/CMakeFiles/HLlib.dir/compiler_depend.make
@@ -219,6 +219,8 @@ CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o: ../src/HiddenLines.cpp \
   /usr/include/c++/11.2.0/tr1/poly_hermite.tcc \
   /usr/include/c++/11.2.0/tr1/poly_laguerre.tcc \
   /usr/include/c++/11.2.0/tr1/riemann_zeta.tcc \
+  /usr/include/c++/11.2.0/utility \
+  /usr/include/c++/11.2.0/bits/stl_relops.h \
   ../src/HiddenLines.h \
   /usr/include/c++/11.2.0/set \
   /usr/include/c++/11.2.0/bits/stl_tree.h \
@@ -270,6 +272,8 @@ CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o: ../src/HiddenLines.cpp \
 
 /usr/include/c++/11.2.0/x86_64-pc-linux-gnu/bits/c++io.h:
 
+/usr/include/c++/11.2.0/bits/stl_relops.h:
+
 /usr/include/c++/11.2.0/fstream:
 
 /usr/include/c++/11.2.0/bits/vector.tcc:
@@ -534,6 +538,8 @@ CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o: ../src/HiddenLines.cpp \
 
 /usr/include/bits/types/time_t.h:
 
+/usr/include/c++/11.2.0/utility:
+
 /usr/include/c++/11.2.0/debug/debug.h:
 
 /usr/include/c++/11.2.0/bits/predefined_ops.h:
diff --git a/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o b/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o
index 7272f45..7b598d5 100644
Binary files a/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o and b/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o differ
diff --git a/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o.d b/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o.d
index 164ccd6..b05846e 100644
--- a/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o.d
+++ b/build/CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o.d
@@ -158,6 +158,8 @@ CMakeFiles/HLlib.dir/src/HiddenLines.cpp.o: \
  /usr/include/c++/11.2.0/tr1/poly_hermite.tcc \
  /usr/include/c++/11.2.0/tr1/poly_laguerre.tcc \
  /usr/include/c++/11.2.0/tr1/riemann_zeta.tcc \
+ /usr/include/c++/11.2.0/utility \
+ /usr/include/c++/11.2.0/bits/stl_relops.h \
  /home/noah/Documents/School/CS-7353_Analysis-of-Algorithms/HW/HW4/src/HiddenLines.h \
  /usr/include/c++/11.2.0/set /usr/include/c++/11.2.0/bits/stl_tree.h \
  /usr/include/c++/11.2.0/ext/aligned_buffer.h \
diff --git a/build/CMakeFiles/main.dir/src/main.cpp.o b/build/CMakeFiles/main.dir/src/main.cpp.o
index 0024c01..33bc6bf 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/libHLlib.a b/build/libHLlib.a
index 8f362f8..160f57f 100644
Binary files a/build/libHLlib.a and b/build/libHLlib.a differ
diff --git a/build/main b/build/main
index 683145c..e22dc28 100755
Binary files a/build/main and b/build/main differ
diff --git a/src/HiddenLines.cpp b/src/HiddenLines.cpp
index 891cff0..af88472 100644
--- a/src/HiddenLines.cpp
+++ b/src/HiddenLines.cpp
@@ -6,6 +6,7 @@
 #include <fstream>
 #include <limits>
 #include <math.h>
+#include <utility>
 
 #include "HiddenLines.h"
 
@@ -17,13 +18,16 @@ HL::HL()
 
 void HL::print_sol()
 {
-	std::cout << "Not yet implemented" << std::endl;
+	for(auto itr = sol.begin(); itr != sol.end(); itr++)
+		std::cout << "Line ID " << std::get<0>(*itr) << " visible in range (" <<
+			std::get<0>(std::get<1>(*itr)) <<
+			"," << std::get<1>(std::get<1>(*itr)) << ")" << std::endl;
 }
 
 //Divide and Conquer Strategy using recursive call to divide ls and merge using merge()
 std::set<Line> HL::gen_sol(std::set<Line>& ls){
+	HL inst = *this;
 	if (ls.size() > 2){
-		HL inst = *this;
 
 		//Create left and right half sets
 		int split = ceil(ls.size()/2);
@@ -49,8 +53,8 @@ std::set<Line> HL::gen_sol(std::set<Line>& ls){
 	//Set with 2 lines is a base case: both are visible at +-inf respectively, and intersection is where they change 
 	//visibility
 	else if (ls.size() == 2){
-		auto l1 = *(ls.begin());
-		auto l2 = *(ls.end());
+		Line l1 = *(ls.begin());
+		Line l2 = *(ls.end());
 		double isec = (l2.get_ycept() - l1.get_ycept())/(l1.get_slope() - l2.get_slope());
 
 		//Smaller Slope: vis from isec to inf
@@ -62,6 +66,12 @@ std::set<Line> HL::gen_sol(std::set<Line>& ls){
 		l2.set_vis_start(-std::numeric_limits<double>::infinity());
 		l2.set_vis_end(isec);
 
+		//Insert partial solutions
+		sol.insert(std::make_pair(l1.get_id(), std::make_pair(l1.get_vis_start(), l1.get_vis_end())));
+		sol.insert(std::make_pair(l2.get_id(), std::make_pair(l2.get_vis_start(), l2.get_vis_end())));
+
+		inst.print_sol();
+
 		return ls;
 	}
 
@@ -74,7 +84,9 @@ std::set<Line> HL::gen_sol(std::set<Line>& ls){
 		return ls;
 	}
 
-	return sol;
+	//return sol;
+	std::set<Line> dummy;
+	return dummy;
 }
 
 std::set<Line> HL::construct_HWprob(){
@@ -145,5 +157,7 @@ std::set<Line> HL::get_lines(){
 }
 
 std::set<Line> HL::get_sol(){
-	return sol;
+	std::set<Line> dummy;
+	return dummy;
+	//return sol;
 }
\ No newline at end of file
diff --git a/src/HiddenLines.h b/src/HiddenLines.h
index 387ff33..e67bc7d 100644
--- a/src/HiddenLines.h
+++ b/src/HiddenLines.h
@@ -17,9 +17,9 @@ class HL
 		std::set<Line> get_sol();
 
 	private:
-		std::set<Line> sol;
+		//Solution is in form Line ID <vis_start, vis_end>
+		std::set<std::pair<int, std::pair<double, double>>> sol;
 		std::set<Line> lines;
-		std::set<std::pair<Line, double>> isec;
 };
 
 std::set<Line> merge(std::set<Line> lh, std::set<Line> rh);