code: структурирование программы

.gitignore

@@ -0,0 +1,2 @@
+/bin
+/obj

main.cpp

@@ -1,87 +1,89 @@
 #include <iostream>
 #include <vector>
+#include <algorithm>  // Äëÿ std::min è std::max (åñëè âû åùå íå âêëþ÷èëè)
+
 using namespace std;
 
-int main()
-{
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+
+Input
+input_data() {
+    Input in;
 
-    size_t number_count;
     cerr << "Enter number count: ";
+    size_t number_count;
     cin >> number_count;
 
-    vector<double> numbers(number_count);
-    for (size_t i = 0; i < number_count; i++)
-    {
-        cin >> numbers[i];
+    in.numbers.resize(number_count);
+    for (size_t i = 0; i < number_count; i++) {
+        cin >> in.numbers[i];
     }
 
-    size_t bin_count;
     cerr << "Enter number bin: ";
-    cin >> bin_count;
+    cin >> in.bin_count;
 
-    vector<size_t> bins(bin_count);
+    return in;
+}
 
-    double min = numbers[0];
-    double max = numbers[0];
-    for (double x : numbers)
-    {
-        if (x < min)
-        {
+void
+find_minmax(const vector<double>& numbers, double& min, double& max) {
+    min = numbers[0];
+    max = numbers[0];
+    for (double x : numbers) {
+        if (x < min) {
             min = x;
         }
-        else if (x > max)
-        {
+        if (x > max) {
             max = x;
         }
     }
+}
+
+vector<size_t>
+make_histogram(const vector<double>& numbers, size_t bin_count) {
+    double min, max;
+    find_minmax(numbers, min, max);
+
+    vector<size_t> bins(bin_count);
     double bin_size = (max - min) / bin_count;
 
-    for (size_t i = 0; i < number_count; i++)
-    {
+    for (size_t i = 0; i < numbers.size(); i++) {
         bool found = false;
-        for (size_t j = 0; (j < bin_count - 1) && !found; j++)
-        {
+        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 <= numbers[i]) && (numbers[i] < hi)) {
                 bins[j]++;
                 found = true;
             }
         }
-        if (!found)
-        {
+        if (!found) {
             bins[bin_count - 1]++;
         }
     }
-    size_t max_count = bins[0];
-    for (size_t i = 0; i < bin_count; i++)
-    {
-        if (bins[i] > max_count) {
-            max_count = bins[i];
-        }
-    }
+    return bins;
+}
+
+void
+show_histogram_text(const vector<size_t>& bins, size_t max_count, size_t MAX_ASTERISK) { // Óáðàëè bin_count ò.ê. åñòü bins.size()
 
-    for (size_t i = 0; i < bin_count; i++)
-    {
-        if (bins[i]<10) {
+    for (size_t i = 0; i < bins.size(); i++) {
+        if (bins[i] < 10) {
             cout << "  " << bins[i] << "|";
-            }
-        else if (bins[i]<100) {
+        } else if (bins[i] < 100) {
             cout << " " << bins[i] << "|";
-        }
-        else if (bins[i]<1000) {
+        } else if (bins[i] < 1000) {
             cout << bins[i] << "|";
         }
 
         size_t height;
 
-        if (max_count<=MAX_ASTERISK) {
+        if (max_count <= MAX_ASTERISK) {
             height = bins[i];
-        }
-        else {
+        } else {
             height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
         }
         for (size_t j = 0; j < height; j++) {
@@ -89,6 +91,23 @@ int main()
         }
         cout << endl;
     }
+}
+
+int
+main() {
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
+
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count);
+
+    size_t max_count = bins[0];
+    for (size_t i = 0; i < bins.size(); i++) { // Èñïðàâèëè öèêë íà bins.size()
+        if (bins[i] > max_count) {
+            max_count = bins[i];
+        }
+    }
+    show_histogram_text(bins, max_count, MAX_ASTERISK);
 
     return 0;
 }