diff --git a/main.cpp b/main.cpp
index 9f5e786..0b5bd0e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -5,25 +5,26 @@
 #include "text.h"
 #include "svg.h"
 
-
 using namespace std;
 
 struct Input
 {
     vector<double>numbers;
     size_t kol_kor{};
+    size_t number_count;
 };
 
 Input
 input_data()
 {
-    size_t number_count;
+    Input in;
+
     cerr<<"Marks: ";
-    cin>>number_count;
+    cin>>in.number_count;
 
-    Input in;
-    in.numbers.resize(number_count);
-    for (size_t i=0; i<number_count; i++)
+
+    in.numbers.resize(in.number_count);
+    for (size_t i=0; i<in.number_count; i++)
     {
         cerr<<"numbers["<<i<<"]=";
         cin>>in.numbers[i];
@@ -36,9 +37,10 @@ input_data()
 
 int main()
 {
+    size_t number_count;
     auto in = input_data();
     auto B = make_histogram(in.numbers, in.kol_kor);
-    show_histogram_svg(B);
+    show_histogram_svg(B, in.number_count);
 
     return 0;
 }
diff --git a/unittest.cpp b/unittest.cpp
index b5b306e..6a573bb 100644
--- a/unittest.cpp
+++ b/unittest.cpp
@@ -5,7 +5,8 @@
 
 
 
-TEST_CASE("distinct positive numbers") {
+TEST_CASE("distinct positive numbers")
+{
     double minp = 0;
     double maxp = 0;
     std::vector<double>numbers{1,2,3,4,5};
@@ -16,3 +17,71 @@ TEST_CASE("distinct positive numbers") {
     CHECK(maxp == 5);
     CHECK(minp!=maxp);
 }
+
+TEST_CASE("distinct positive numbers")
+{
+    double minp = 0;
+    double maxp = 0;
+    std::vector<double>numbers{3,4,4,4,4};
+    find_minmax(numbers, minp, maxp);
+    CHECK(minp == 1);
+    CHECK(maxp == 5);
+}
+
+TEST_CASE("emptyA")
+{
+    std::vector<double>numbers{1,2,3,4};
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    CHECK(numbers.size() !=0 );
+}
+
+TEST_CASE("min")
+{
+    std::vector<double>numbers{1,2,3,4};
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    CHECK(min == 1);
+}
+
+TEST_CASE("max")
+{
+    std::vector<double>numbers{1,2,3,4};
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    CHECK(max == 4);
+}
+
+
+TEST_CASE("1A")
+{
+    std::vector<double>numbers{1,2,3,4};
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    CHECK(numbers.size() !=1 );
+}
+
+
+TEST_CASE("same")
+{
+    std::vector<double>numbers{1,1,1,1};
+    std::vector<double>B{1,1,1,1};
+    double min = 0;
+    double max = 0;
+    find_minmax(numbers, min, max);
+    CHECK(numbers == B);
+}
+
+TEST_CASE("emt")
+{
+    std::vector<double>numbers{};
+    double minp = 0;
+    double maxp = 0;
+    CHECK(find_minmax(numbers,minp,maxp)==false);
+}
+
+