code: добавил в input_data() новый параметр: bool prompt

project/main.cpp

@@ -13,10 +13,13 @@ struct Input
 };
 
 Input
-input_data(istream& in)
+input_data(istream& in, bool promt)
 {
     size_t number_count;
-    cerr << "Enter number count: ";
+    if (promt)
+    {
+        cerr << "Enter number count: ";
+    }
     in >> number_count;
 
     Input ik;
@@ -34,7 +37,7 @@ input_data(istream& in)
 
 int main()
 {
-    auto in = input_data(cin);
+    auto in = input_data(cin, true);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_svg(bins);
     getch();