diff --git a/ex1/ABCEFG/skalar_stl/DenseMatrix.cpp b/ex1/ABCEFG/skalar_stl/DenseMatrix.cpp
deleted file mode 100644
index 175a71b..0000000
--- a/ex1/ABCEFG/skalar_stl/DenseMatrix.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-
-#include <iostream>
-#include <vector>
-#include <cmath>
-#include <cassert>
-using namespace std;
-
diff --git a/ex1/ABCEFG/skalar_stl/DenseMatrix.h b/ex1/ABCEFG/skalar_stl/DenseMatrix.h
deleted file mode 100644
index 3235712..0000000
--- a/ex1/ABCEFG/skalar_stl/DenseMatrix.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#pragma once
-
-#include <vector>
-using namespace std;
diff --git a/ex1/ABCEFG/skalar_stl/DenseMatrix.o b/ex1/ABCEFG/skalar_stl/DenseMatrix.o
deleted file mode 100644
index b18fd03..0000000
Binary files a/ex1/ABCEFG/skalar_stl/DenseMatrix.o and /dev/null differ
diff --git a/ex1/ABCEFG/skalar_stl/main.GCC_ b/ex1/ABCEFG/skalar_stl/main.GCC_
index 563c943..d4ba575 100755
Binary files a/ex1/ABCEFG/skalar_stl/main.GCC_ and b/ex1/ABCEFG/skalar_stl/main.GCC_ differ
diff --git a/ex1/ABCEFG/skalar_stl/main.cpp b/ex1/ABCEFG/skalar_stl/main.cpp
index 35e679c..d2bd2b0 100644
--- a/ex1/ABCEFG/skalar_stl/main.cpp
+++ b/ex1/ABCEFG/skalar_stl/main.cpp
@@ -1,6 +1,5 @@
 #include "mylib.h"
 #include "timing.h"
-#include "DenseMatrix.h"
 
 #include <cassert>          // assert
 #include <vector>
diff --git a/ex1/ABCEFG/skalar_stl/main.o b/ex1/ABCEFG/skalar_stl/main.o
index 9b88548..4bc5080 100644
Binary files a/ex1/ABCEFG/skalar_stl/main.o and b/ex1/ABCEFG/skalar_stl/main.o differ
diff --git a/ex1/ABCEFG/skalar_stl/mylib.cpp b/ex1/ABCEFG/skalar_stl/mylib.cpp
index d7ac4b4..fbea237 100644
--- a/ex1/ABCEFG/skalar_stl/mylib.cpp
+++ b/ex1/ABCEFG/skalar_stl/mylib.cpp
@@ -1,6 +1,5 @@
 #include "mylib.h"
 #include "mayer_primes.h"
-#include "DenseMatrix.h"
 
 #include <cassert>          // assert
 #include <vector>
diff --git a/ex1/ABCEFG/skalar_stl/mylib.o b/ex1/ABCEFG/skalar_stl/mylib.o
index 6dfc4c1..089aca4 100644
Binary files a/ex1/ABCEFG/skalar_stl/mylib.o and b/ex1/ABCEFG/skalar_stl/mylib.o differ