diff --git a/Oving 6/Oving 6/Oving 6.vcxproj b/Oving 6/Oving 6/Oving 6.vcxproj
index 7acdd3b..701d330 100644
--- a/Oving 6/Oving 6/Oving 6.vcxproj	
+++ b/Oving 6/Oving 6/Oving 6.vcxproj	
@@ -138,6 +138,7 @@
     <ClCompile Include="Task1.cpp" />
     <ClCompile Include="Task2.cpp" />
     <ClCompile Include="Task3.cpp" />
+    <ClCompile Include="Task4.cpp" />
   </ItemGroup>
   <ItemGroup>
     <Text Include="grunnlov.txt" />
@@ -148,6 +149,7 @@
     <ClInclude Include="Task1.h" />
     <ClInclude Include="Task2.h" />
     <ClInclude Include="Task3.h" />
+    <ClInclude Include="Task4.h" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/Oving 6/Oving 6/Oving 6.vcxproj.filters b/Oving 6/Oving 6/Oving 6.vcxproj.filters
index 74dbf84..c86edd9 100644
--- a/Oving 6/Oving 6/Oving 6.vcxproj.filters	
+++ b/Oving 6/Oving 6/Oving 6.vcxproj.filters	
@@ -27,6 +27,9 @@
     <ClCompile Include="Task3.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="Task4.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <Text Include="grunnlov_iso-latin-1.txt">
@@ -49,5 +52,8 @@
     <ClInclude Include="Task3.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="Task4.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/Oving 6/Oving 6/Task3.cpp b/Oving 6/Oving 6/Task3.cpp
index b3f876d..c0dcadf 100644
--- a/Oving 6/Oving 6/Task3.cpp	
+++ b/Oving 6/Oving 6/Task3.cpp	
@@ -6,7 +6,7 @@ CourseCatalog::CourseCatalog()
 
 void CourseCatalog::addCourse(string code, string name)
 {
-	courses.insert(code, name);
+	courses[code] = name;
 }
 
 void CourseCatalog::removeCourse(string code)
@@ -19,7 +19,13 @@ string CourseCatalog::getCourse(string code)
 	return courses[code];
 }
 
-ostream & operator<<(ostream &, const CourseCatalog &)
-{
-	// TODO: insert return statement here
+
+ostream& operator<<(ostream & os, const CourseCatalog & cc)
+{	
+	string courses;
+	for (const auto c : cc.courses)
+	{
+		 courses += c.first + '\t' + c.second + '\n';
+	}
+	return os << courses;
 }
diff --git a/Oving 6/Oving 6/Task3.h b/Oving 6/Oving 6/Task3.h
index 822f4e4..dc6865e 100644
--- a/Oving 6/Oving 6/Task3.h	
+++ b/Oving 6/Oving 6/Task3.h	
@@ -6,7 +6,7 @@ class CourseCatalog
 public:
 	CourseCatalog();
 	friend ostream& operator<<(ostream&, const CourseCatalog&);
-	void addCourse(string code, string name);
+	void addCourse(const string code, string name);
 	void removeCourse(string code);
 	string getCourse(string code);
 private:
diff --git a/Oving 6/Oving 6/Task4.cpp b/Oving 6/Oving 6/Task4.cpp
new file mode 100644
index 0000000..7e1532f
--- /dev/null
+++ b/Oving 6/Oving 6/Task4.cpp	
@@ -0,0 +1,40 @@
+#include "Task4.h"
+
+istream & operator>>(istream & is, Temps & t)
+{
+	double inMax, inMin;
+	is >> inMax >> inMin;
+	if (!is) return is;
+
+	t = Temps{ inMax, inMin };
+	return is;
+	// TODO: insert return statement here
+}
+
+ostream & operator<<(ostream & os, vector<Temps>& temps)
+{
+	for (const auto t : temps)
+	{
+		os << t.max << '\t' << t.min << '\n';
+	}
+	return os;
+}
+
+void readTempsFromFile(vector<Temps>& temps, string path)
+{
+	ifstream ifs{ path };
+	if (!ifs)
+	{
+		error("Cant open file ", path);
+		return;
+	}
+	Temps t;
+	string line;
+	while (getline(ifs, line))
+	{
+		cout << line;
+		istringstream iss{ line };
+		iss >> t;
+		temps.push_back(t);
+	}
+}
diff --git a/Oving 6/Oving 6/Task4.h b/Oving 6/Oving 6/Task4.h
new file mode 100644
index 0000000..c5600c6
--- /dev/null
+++ b/Oving 6/Oving 6/Task4.h	
@@ -0,0 +1,12 @@
+#pragma once
+#include "std_lib_facilities.h"
+
+struct Temps {
+	double max, min;
+};
+
+istream& operator>>(istream& is, Temps& t);
+
+ostream& operator<<(ostream& os, vector<Temps>& temps);
+
+void readTempsFromFile(vector<Temps>& temps, string path);
\ No newline at end of file
diff --git a/Oving 6/Oving 6/main.cpp b/Oving 6/Oving 6/main.cpp
index b8036b3..0d0e3b3 100644
--- a/Oving 6/Oving 6/main.cpp	
+++ b/Oving 6/Oving 6/main.cpp	
@@ -2,6 +2,7 @@
 #include "Task1.h"
 #include "Task2.h"
 #include "Task3.h"
+#include "Task4.h"
 
 int main(){
 
@@ -10,7 +11,28 @@ int main(){
 
 	//addLineNumber("inn.txt", "out.txt");
 
-	countCharInTxt("grunnlov.txt");
+	//countCharInTxt("grunnlov.txt");
+
+	
+	CourseCatalog courses = CourseCatalog();
+
+	courses.addCourse("TDT4100", "Informasjonsteknologi grunnkurs");
+	courses.addCourse("TDT4102", "Prosedyre- og objektorientert programmering");
+	courses.addCourse("TMA4100", "Matematikk 1");
+	courses.addCourse("TDT4102", "C++");
+
+	// map.insert funker ikke
+
+
+	cout << courses;
+
+	vector<Temps> temps;
+	string file = "temperatures.txt";
+
+	readTempsFromFile(temps, file);
+
+	cout << temps;
+
 
 	return 0;
-}
\ No newline at end of file
+}