diff --git a/bintree.o b/bintree.o
new file mode 100644
index 0000000..1bb8c13
Binary files /dev/null and b/bintree.o differ
diff --git a/doble.exe b/doble.exe
new file mode 100644
index 0000000..2e17732
Binary files /dev/null and b/doble.exe differ
diff --git a/highscore.o b/highscore.o
new file mode 100644
index 0000000..e9b31f1
Binary files /dev/null and b/highscore.o differ
diff --git a/numbers.o b/numbers.o
new file mode 100644
index 0000000..371b158
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diff --git a/test_stack.c b/test_stack.c
index ea95ac9..e304ffa 100644
--- a/test_stack.c
+++ b/test_stack.c
@@ -39,7 +39,7 @@ void test_push_and_top(void)
 
     TEST_ASSERT_EQUAL_INT(30, *(int*)top(stack));
 
-    clearStack(&stack);
+    clearStack(stack);
     TEST_ASSERT_NULL(stack);
 }
 
@@ -72,7 +72,7 @@ void test_clearStack(void)
     stack = push(stack, &x);
     stack = push(stack, &y);
 
-    clearStack(&stack);
+    clearStack(stack);
 
     TEST_ASSERT_NULL(stack);
 }
\ No newline at end of file
diff --git a/timer.o b/timer.o
new file mode 100644
index 0000000..5af0f96
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