code: пункт 2 структурирование

main.cpp

@@ -1,24 +1,37 @@
 #include <iostream>
 #include <vector>
-#include <cmath>
+
 using namespace std;
 
-const size_t SCREEN_WIDTH = 80;
-const size_t MAX_ASTERISK = SCREEN_WIDTH - 4;
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+}
+
+Input input_data() {
 
-int main() {
     size_t number_count;
     cerr << "Enter number count: ";
     cin >> number_count;
 
-    vector<double> numbers(number_count);
+    Input in;
+
+    cout << "Enter bin count: ";
+    cin >> in.bin_count;
+
+    in.numbers.resize(number_count);
+    in.bin_count.resize(bin_count);
+
     cerr << "Enter numbers: ";
     for (size_t i = 0; i < number_count; i++) {
-        cin >> numbers[i];
+        cin >> in.numbers[i];
     }
+    return in;
+}
 
-    double min = numbers[0];
-    double max = numbers[0];
+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;
@@ -27,48 +40,43 @@ int main() {
             max = x;
         }
     }
+}
 
-    size_t bin_count;
-    cerr << "Enter bin count: ";
-    cin >> bin_count;
+int main(){
+    Input in = input_data();
 
-    if (bin_count == 0) {
-        bin_count = int(sqrt(number_count));
-        if (bin_count > 25) {
-            bin_count = int(1 + log2(number_count));
-            cerr << "Calculated " << bin_count << " bins with Sturges' formula" << endl;
-        }
-        else {
-            cerr << "Calculated " << bin_count << " bins with Empiric formula" << endl;
-        }
-    }
+    vector<size_t> bins ( in.bin_count );
+    double min = in.numbers[0];
+    double max = in.numbers[0];
 
-    vector<size_t> bins(bin_count, 0);
-    double bin_size = (max - min) / bin_count;
+    find_minmax(in.numbers, min, max);
 
-    for (size_t i = 0; i < number_count; i++) {
+    double bin_size = (max - min) / in.bin_count;
+
+    for (size_t i = 0; i < in.number.size(); i++) {
         bool found = false;
-        for (size_t j = 0; (j < (bin_count - 1)) && !found; j++) {
+        for (size_t j = 0; (j < (in.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 <= in.numbers[i]) && (in.numbers[i] < hi)) {
                 bins[j]++;
                 found = true;
             }
         }
         if (!found) {
-            bins[bin_count - 1]++;
+            bins[in.bin_count - 1]++;
         }
     }
 
     size_t maxbin = bins[0];
-    for (size_t i=1; i < bins.size(); i++){
+    for (size_t i=1; i < in.bin_count; i++){
         if (maxbin < bins[i]){
             maxbin = bins[i];
         }
     }
+
     if (maxbin <= MAX_ASTERISK){
-        for (size_t i = 0; i < bins.size(); i++) {
+        for (size_t i = 0; i < in.bin_count; i++) {
             cout.width(4);
             cout << bins[i] << "|";
             for (size_t j = 0; j < bins[i]; j++) {
@@ -78,7 +86,7 @@ int main() {
         }
         return 0;
     } else {
-        for (size_t i = 0; i < bins.size(); i++) {
+        for (size_t i = 0; i < in.bin_count; i++) {
             cout.width(4);
             cout << bins[i] << "|";
             size_t height = static_cast<size_t>(MAX_ASTERISK * (static_cast<double>(bins[i]) / maxbin));