code: начало 4 лаборотоной, добавлен поток ввода

main.cpp

@@ -15,21 +15,21 @@ struct Input
     size_t bin_count{};
 };
 
-Input input_data()
+Input input_data(istream& stream)
 {
     size_t number_count;
     cerr << "Enter number count:";
-    cin >> number_count;
+    stream >> number_count;
 
     Input in;
 
     in.numbers.resize(number_count);
     cerr << "Enter numbers: ";
     for(size_t i = 0; i < number_count; i++)
-        cin >> in.numbers[i];
+        stream >> in.numbers[i];
 
     cerr << "Enter number of bins: ";
-    cin >> in.bin_count;
+    stream >> in.bin_count;
 
     return in;
 
@@ -37,9 +37,10 @@ Input input_data()
 
 int main()
 {
-    Input in = input_data();
+    auto in = input_data(cin);
 
     auto bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_svg_vertical(bins);
+  //  show_histogram_svg_vertical(bins);
+    show_histogram_svg(bins);
 
 }