code: переработка программы до пункта 4

main.cpp

@@ -3,90 +3,113 @@
 #include <cmath>
 
 using namespace std;
+
+
+
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+
+Input
+input_data() {
+    size_t number_count;
+    cin >> number_count;
+    Input in;
+    in.numbers.resize(number_count);
+
+    for (size_t i = 0; i < number_count; i++) {
+        cin >> in.numbers[i];
+    }
+
+    cout << "Enter number of bins";
+    cin >> in.bin_count;
+    return in;
+}
+
+void find_minmax(const vector<double>& numbers, double& min, double& max) {
+    min = numbers[0];
+    for (auto i = 0; i < numbers.size(); i++) {
+        if (numbers[i] < min) {
+            min = numbers[i];
+        }
+    }
+
+    max = numbers[0];
+    for (auto i = 0; i < numbers.size(); i++) {
+        if (numbers[i] > max) {
+            max = numbers[i];
+        }
+    }
+
+}
+
+vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) {
+
+    vector<size_t> bins(bin_count);
+    vector<size_t> binss(bin_count);
+
+    double max, min;
+    find_minmax(numbers, min, max);
+    double bin_size = (max / min) / bin_count;
+
+    for (size_t i = 0; i < numbers.size(); i++) {
+        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)) {
+                bins[j]++;
+                found = true;
+            }
+        }
+        if (!found) {
+            bins[bin_count - 1]++;
+        }
+    }
+
+    int max_count = bins[0];
+    for (size_t i = 0; i < bin_count; i++) {
+        if (bins[i] > max_count) {
+            max_count = bins[i];
+        }
+    }
+
+    if (max_count > 76) {
+
+        for (size_t i = 0; i < bin_count; i++) {
+            int count = bins[i];
+            size_t height = 76 * (static_cast<double>(count) / max_count);
+            bins[i] = height;
+        }
+    }
+    return bins;
+}
+
+void show_histogram_text(vector <size_t> bins, size_t bin_count ) {
+
+    for (size_t i = 0; i < bin_count; i++) {
+        if (bins[i] < 100) {
+            cout << " ";
+        }
+        if (bins[i] < 10) {
+            cout << " ";
+        }
+        cout << bins[i] << "|";
+        for (size_t j = 0; j < bins[i]; j++) {
+            cout << "*";
+        }
+        cout << "\n";
+    }
+}
+
+
+
 int main()
 {
-size_t number_count;
+    Input in = input_data();
-size_t bin_count;
+    auto bins = make_histogram(in.numbers, in.bin_count);
-cerr << "Enter number count:";
+    show_histogram_text(bins, in.bin_count);
-cin >> number_count;
 
-vector<double> numbers(number_count);
-for (size_t i = 0; i < number_count; i++) {
-cin >> numbers[i];
-}
 
-cerr << "Enter number of bins:";
+    }
-cin >> bin_count;
-
-vector<size_t> bins(bin_count);
-vector<size_t> binss(bin_count);
-
-float t = numbers[0];
-for (size_t i = 0; i < number_count; i++) {
-if (numbers[i] < t) {
-t = numbers[i];
-}
-}
-
-float min = t;
-t = numbers[0];
-for (size_t i = 0; i < number_count; i++) {
-if (numbers[i] > t) {
-t = numbers[i];
-}
-}
-
-float max = t;
-
-double bin_size = (max / min) / bin_count;
-
-for (size_t i = 0; i < number_count; i++) {
-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)) {
-bins[j]++;
-found = true;
-}
-}
-if (!found) {
-bins[bin_count - 1]++;
-}
-}
-
-for (size_t i = 0; i < bin_count; i++) {
-binss[i] = bins[i];
-}
-
-int max_count = bins[0];
-for (size_t i = 0; i < bin_count; i++) {
-if (bins[i] > max_count) {
-max_count = bins[i];
-}
-}
-
-if (max_count > 76) {
-
-for (size_t i = 0; i < bin_count; i++) {
-int count = bins[i];
-size_t height = 76 * (static_cast<double>(count) / max_count);
-bins[i] = height;
-}
-}
-
-for (size_t i = 0; i < bin_count; i++) {
-if (binss[i] < 100) {
-cout << " ";
-}
-if (binss[i] < 10) {
-cout << " ";
-}
-cout << bins[i] << "|";
-for (size_t j = 0; j < binss[i]; j++) {
-cout << "*";
-}
-cout << "\n";
-}
-
-}