the second stage

main.cpp

@@ -2,29 +2,36 @@
 #include <vector>
 
 using namespace std;
-int main()
-{
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
-    //ââîä ÷èñëà ýëåìåíòîâ ìàññèâà
+
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+
+Input input_data() {
     size_t number_count;
     cerr << "Enter number count: ";
     cin >> number_count;
-    //èíèöèàëèçàöèÿ ìàññèâà ÷èñåë è çàïîëíåíèå
-    vector<double> numbers(number_count);
+
+    Input in;
+
+    in.numbers.resize(number_count);
+
     for (size_t i = 0; i < number_count; i++)
     {
-        cin >> numbers[i];
+        cin >> in.numbers[i];
     }
-    //ââîä ÷èñëà êîðçèí
-    size_t bin_count;
+
     cerr << "Enter number bin: ";
-    cin >> bin_count;
-    //èíèöèàëèçàöèÿ ìàññèâà êîðçèí
-    vector<size_t> bins(bin_count);
-    //ïîèñêè ýêñòðåìóìîâ
-    double min = numbers[0];
-    double max = numbers[0];
+    cin >> in.bin_count;
+
+    return in;
+}
+
+void find_minmax(const vector<double>& numbers, double& min, double& max) {
+    min = numbers[0];
+    max = numbers[0];
+
     for (double x : numbers)
     {
         if (x < min)
@@ -36,16 +43,24 @@ int main()
             max = x;
         }
     }
+}
+
+vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count)
+{
+    double min, max;
+    find_minmax(numbers, min, max);
+
     double bin_size = (max - min) / bin_count;
-    //ðàñïðåäåëåíèå ïî êîðçèíàì
-    for (size_t i = 0; i < number_count; i++)
+    vector<size_t> bins(bin_count);
+
+    for (double number : numbers)
     {
         bool found = false;
         for (size_t j = 0; (j < bin_count - 1) && !found; j++)
         {
             auto lo = min + j * bin_size;
             auto hi = min + (j + 1) * bin_size;
-            if ((lo <= numbers[i]) && (numbers[i] < hi))
+            if ((lo <= number) && (number < hi))
             {
                 bins[j]++;
                 found = true;
@@ -56,7 +71,15 @@ int main()
             bins[bin_count - 1]++;
         }
     }
-    //âûâîäû ðåçóëüòàòîâ
+    return bins;
+}
+
+void show_histogram_text(const vector<size_t>& bins, size_t bin_count) {
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+
+    Input in;
+
     size_t max_count = bins[0];
     for (size_t i = 0; i < bin_count; i++)
     {
@@ -91,6 +114,12 @@ int main()
         }
         cout << endl;
     }
+}
 
+int main()
+{
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    show_histogram_text(bins, in.bin_count);
     return 0;
 }