diff --git a/LR3/.gitignore b/LR3/.gitignore
index 4c7473d..b6aa39b 100644
--- a/LR3/.gitignore
+++ b/LR3/.gitignore
@@ -1,2 +1,4 @@
 /bin
 /obj
+/LR3.depend
+/LR3.layout
diff --git a/LR3/LR3.cbp b/LR3/LR3.cbp
index 919a8d5..ccf7e89 100644
--- a/LR3/LR3.cbp
+++ b/LR3/LR3.cbp
@@ -32,7 +32,16 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
+		<Unit filename=".gitignore" />
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Unit filename="main.cpp" />
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h">
+			<Option target="&lt;{~None~}&gt;" />
+		</Unit>
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>
diff --git a/LR3/histogram.cpp b/LR3/histogram.cpp
index 0930495..b627dc7 100644
--- a/LR3/histogram.cpp
+++ b/LR3/histogram.cpp
@@ -1,4 +1,5 @@
 #include "histogram.h"
+#include <vector>
 
 
 using namespace std;
diff --git a/LR3/histogram.h b/LR3/histogram.h
index f1dd6c6..b47370d 100644
--- a/LR3/histogram.h
+++ b/LR3/histogram.h
@@ -1,9 +1,10 @@
 #ifndef HISTOGRAM_H_INCLUDED
 #define HISTOGRAM_H_INCLUDED
+
 #include <vector>
 
 std::vector<size_t>
-make_histogram(std::vector<double> numbers, size_t bin_count);
+make_histogram(std::vector<double> numbers, int bin_count);
 
 
 
diff --git a/LR3/text.cpp b/LR3/text.cpp
index 9a2b870..e741dfc 100644
--- a/LR3/text.cpp
+++ b/LR3/text.cpp
@@ -1,3 +1,4 @@
+#include <vector>
 #include "text.h"
 
 using namespace std;