diff --git a/histogram.cpp b/histogram.cpp
index 5d85960..641db08 100644
--- a/histogram.cpp
+++ b/histogram.cpp
@@ -3,8 +3,14 @@
 using namespace std;
 
 void find_minmax(const vector<double>& numbers, double& min, double& max) {
+    if (numbers.empty())
+    {
+        min = 0;
+        max = 0;
+        return;
+    }
     max = numbers[0];
-    min = numbers[1];
+    min = numbers[0];
     for (double x : numbers) {
         if (x < min) min = x;
         else if (x > max) max = x;
diff --git a/lab01.cbp b/lab01.cbp
index d541ad7..e7b48a0 100644
--- a/lab01.cbp
+++ b/lab01.cbp
@@ -32,7 +32,14 @@
 			<Add option="-Wall" />
 			<Add option="-fexceptions" />
 		</Compiler>
+		<Unit filename="histogram.cpp" />
+		<Unit filename="histogram.h" />
+		<Unit filename="histogram_internal.h" />
 		<Unit filename="main.cpp" />
+		<Unit filename="svg.cpp" />
+		<Unit filename="svg.h" />
+		<Unit filename="text.cpp" />
+		<Unit filename="text.h" />
 		<Extensions>
 			<lib_finder disable_auto="1" />
 		</Extensions>
diff --git a/main.cpp b/main.cpp
index 1457c4c..7e40a09 100644
--- a/main.cpp
+++ b/main.cpp
@@ -2,6 +2,7 @@
 #include <vector>
 #include "histogram.h"
 #include "text.h"
+#include "svg.h"
 using namespace std;
 
 struct Input {
@@ -29,6 +30,6 @@ Input input_data() {
 int main() {
     auto in = input_data();
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins, in.bin_count);
+    show_histogram_svg(bins);
     return 0;
 }