code: add prompt

main.cpp

@@ -11,9 +11,11 @@ struct Input {
     size_t bin_count{};
 };
 
-Input input_data(istream& in1) {
+Input input_data(istream& in1, bool prompt) {
     size_t number_count;
+    if (prompt) {
     cerr << "Enter number count: ";
+    }
     in1 >> number_count;
 
     Input in;
@@ -24,8 +26,9 @@ Input input_data(istream& in1) {
     {
         in1 >> in.numbers[i];
     }
-
+    if (prompt) {
     cerr << "Enter number bin: ";
+    }
     in1 >> in.bin_count;
 
     return in;
@@ -35,7 +38,8 @@ Input input_data(istream& in1) {
 
 int main()
 {
-    auto in = input_data(cin);
+    bool prompt = false;
+    auto in = input_data(cin, prompt);
     auto bins = make_histogram(in.numbers, in.bin_count);
     show_histogram_text(bins, in.bin_count);
     //show_histogram_svg(bins);