2: new code with function

main.cpp

@@ -6,26 +6,34 @@ using namespace std;
 const size_t SCREEN_WIDTH = 80;
 const size_t MAX_ASTERISK = SCREEN_WIDTH - 4;
 
-int main() {
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
 
+Input
+input_data() {
     size_t number_count;
     cerr << "Enter number count: ";
     cin >> number_count;
 
-    vector<double> numbers(number_count);
+    Input in;
+    in.numbers.resize(number_count);
     cerr << "Enter massive elements: ";
     for (size_t i = 0; i < number_count; i++) {
-        cin >> numbers[i];
+        cin >> in.numbers[i];
     }
 
-    size_t bin_count;
+    in.bin_count; //ÇÀ×ÅÌ
     cerr << "Enter bin count: ";
-    cin >> bin_count;
+    cin >> in.bin_count;
+    return in;
+}
 
-    vector<size_t> bins(bin_count);
+void find_minmax(const vector<double>& numbers, double& mini, double& maxi) {
 
-    double mini = numbers[0];
+    mini = numbers[0];
-    double maxi = numbers[0];
+    maxi = numbers[0];
     for (double x : numbers) {
         if (x < mini) {
             mini = x;
@@ -34,14 +42,22 @@ int main() {
             maxi = x;
         }
     }
+}
+
+vector<size_t>
+make_histogram(const vector<double>& numbers, int bin_count) {
+    double mini, maxi;
+    find_minmax(numbers, mini, maxi);
+
+    vector<size_t> bins(bin_count);
 
     double bin_size = (maxi - mini) / bin_count;
-    for (size_t i = 0; i < number_count; i++) {
+    for (double num : numbers) {
         bool found = false;
         for (size_t j = 0; (j < bin_count - 1) && !found; j++){
             auto lo = mini + j * bin_size;
             auto hi = mini + (j + 1) * bin_size;
-            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
+            if ((lo <= num) && (num < hi)) {
                 bins[j]++;
                 found = true;
             }
@@ -51,37 +67,45 @@ int main() {
         }
     }
 
+    return bins;
+}
 
-
+void show_histogram_text(const vector<size_t>& bins, size_t bin_count) {
-   size_t max_count = bins[0];
+    size_t max_count = bins[0];
-        for (size_t i = 0; i < bin_count; i++) {
+    for (size_t i = 0; i < bin_count; i++) {
-            if (bins[i]>max_count) {
+        if (bins[i] > max_count) {
-             max_count = bins[i];
+            max_count = bins[i];
-            }
         }
+    }
 
     vector<size_t> height(bin_count);
     for (size_t i = 0; i < bin_count; i++) {
         if (max_count > MAX_ASTERISK) {
             height[i] = round(MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count));
         } else {
-            height[i]=bins[i];
+            height[i] = bins[i];
         }
     }
 
     for (size_t i = 0; i < bin_count; i++) {
-            if (bins[i] < 10) {
+        if (bins[i] < 10) {
-              cout << "  ";
+            cout << "  ";
-            } else if (bins[i] < 100) {
+        } else if (bins[i] < 100) {
-                cout << " ";
+            cout << " ";
-            }
+        }
         cout << bins[i] << "| ";
 
-
+        for (size_t j = 0; j < height[i]; j++) {
-        for (size_t j = 0; j<height[i]; j++) {
+            cout << " * ";
-            cout <<" * ";
         }
         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;
+}