code: структурированный код при помощи функций

main.cpp

@@ -2,39 +2,61 @@
 #include <cmath>
 #include <vector>
 using namespace std;
-int main()
-{
-    size_t count, bin_count;
 
-    size_t i, j;
-    float min, max, bin_size;
-    float low, hi;
+struct Input{
+    vector <double> numbers;
+    size_t bin_count{};
+    };
+
+Input
+input_data()
+{
+    size_t count;  // âñå ÷èñëà
     cerr << "Count= ";
     cin >> count;
-    cerr << "Bin_count= ";
-    cin >> bin_count;
-    vector<double>numbers(count);
-    vector<size_t>bins(bin_count);
-    for (i = 0; i < count; i++)
+
+    Input in;
+    in.numbers.resize(count);
+    cerr << "numbers:";
+    for (size_t i = 0; i < count; i++)
     {
-        cin >> numbers[i];
+        cin >> in.numbers[i];
     }
+
+    cerr << "Bin_count= ";
+    cin >> in.bin_count;
+
+    return in;
+}
+
+void
+find_minmax(const vector<double>& numbers, double &min, double &max)
+{
     min = numbers[0];
     max = numbers[0];
-    for (i = 0; i < count; i++)
+    for (size_t i = 0; i < numbers.size(); i++)
     {
         if (numbers[i] > max)
             max = numbers[i];
         if (numbers[i] < min)
             min = numbers[i];
     }
-    bin_size = (max - min) / bin_count;
+}
+
+vector <size_t> make_histogram (const vector<double>& numbers,size_t &bin_count)
+{
+    vector <size_t> bins(bin_count);
+    double low, hi;
+    double min, max;
+    find_minmax(numbers, min, max);
+
+    double bin_size = (max - min) / bin_count;
     low = min;
     hi = low + bin_size;
-    for (i = 0; i < count; i++)
+    for (size_t i = 0; i < numbers.size(); i++)
     {
         bool found = false;
-        for (j = 0; (j < bin_count - 1) && !found; j++)
+        for (size_t j = 0; (j < bin_count - 1) && !found; j++)
         {
             low = min + j * bin_size;
             hi = min + (j + 1) * bin_size;
@@ -48,16 +70,12 @@ int main()
         {
             bins[bin_count - 1]++;
         }
+
     }
-
-
-    size_t sum_bins = 0;
-    for (size_t bin : bins)
-    {
-        sum_bins += bin;
-    }
-    size_t sred_bin = sum_bins / bin_count;
-
+    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;
 
@@ -77,19 +95,21 @@ int main()
         if (bin < 10)
             cout << " ";
         cout << bin << "|";
-        if (height > sred_bin) {
-            for (size_t i = 0; i < sred_bin; i++)
-                cout << "*";
-            for (size_t i = sred_bin; i < height; i++)
-                cout << "+";
-        }
-        else {
-            for (size_t i = 0; i < height; i++)
-                cout << "*";
-            for (size_t i = height; i < sred_bin; i++)
-                cout << "-";
-        }
+
+        for (size_t i = 0; i < height; i++)
+            cout << "*";
         cout << endl;
     }
+}
+
+
+int main()
+{
+    Input in = input_data();
+    //double bin_count{};
+    auto bins=make_histogram(in.numbers,in.bin_count);
+    //for (int i=0; i<in.bin_count; i++)
+        //cout << bins[i];
+    show_histogram_text(bins,in.bin_count);
     return 0;
 }