code:добавлен параметр bool prompt

main.cpp

@@ -4,29 +4,42 @@
 #include <iostream>
 #include <vector>
 
+using namespace std;
+
 struct Input {
-    std::vector<double> vec;
+    vector<double> vec;
     size_t korz{};
 };
 
-Input input_data(std::istream &in) {
+Input input_data(istream &in, bool prompt) {
     Input data;
     size_t n, korz;
 
-    cerr << "Number of elements: ";
+    if (prompt) {
+        cerr << "Number of elements: ";
+    }
     in >> n;
     data.vec.resize(n);
-    cerr << "Elements: ";
+
+    if (prompt) {
+        cerr << "Elements: ";
+    }
     for (size_t i = 0; i < n; i++)
         in >> data.vec[i];
-    cerr << "Enter bin count: ";
+
+    if (prompt) {
+        cerr << "Enter bin count: ";
+    }
     in >> korz;
     data.korz = korz;
+
     return data;
 }
+
 int main() {
-    using namespace std;
-    auto in = input_data(cin);
-    auto bins = make_histogram(in.korz, in.vec);
-    show_histogram_svg(bins);
+
+    auto in_with_prompt = input_data(cin, true);
+    auto bins_with_prompt = make_histogram(in_with_prompt.korz, in_with_prompt.vec);
+    show_histogram_svg(bins_with_prompt);
+
 }