Пункт 1-3

main.cpp

@@ -2,25 +2,30 @@
 #include <vector>
 using namespace std;
 
-int main(){
-
-    const size_t SCREEN_WIDTH = 80;
-    const size_t MAX_ASTERISK = SCREEN_WIDTH - 6 - 1;
-    size_t bin_count, counts;
-    cerr << "Enter counts:";
-    cin >> counts;
-
-    vector <double> numbers(counts);
-
-    for (size_t i = 0; i < counts; i++){
-        cerr << "Enter array "<< i <<" number:";
-        cin >> numbers[i];
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+
+Input
+input_data(){
+    Input in;
+    size_t number_count;
+    cin >> number_count;
+    in.numbers.resize(number_count);
+
+    vector<double> numbers(number_count);
+for (size_t i = 0; i < number_count; i++) {
+    cin >> in.numbers[i];
     }
 
-    cerr << "Enter bin_count:";
-    cin >> bin_count;
+    cin >> in.bin_count;
+    return in;
+}
 
-    double minN = numbers[0], maxN = numbers[0];
+void find_minmax( const vector<double>& numbers, double& minN, double& maxN) {
+    minN = numbers[0];
+    maxN = numbers[0];
 
     for (double x: numbers){
         if (minN > x){
@@ -31,12 +36,16 @@ int main(){
         }
     }
 
-    double diff = (maxN - minN) / bin_count;
+}
 
-    vector <size_t> bins(bin_count);
+auto make_histogram(vector<double> numbers, size_t bin_count){
+    double minN, maxN;
+    find_minmax( numbers, minN, maxN);
 
+    vector <size_t> bins(bin_count);
+    double diff = (maxN - minN) / bin_count;
     size_t max_count = 0;
-    for (size_t i = 0; i < counts; i++){
+    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 = minN + j * diff;
@@ -55,7 +64,13 @@ int main(){
                     max_count = bins[bin_count - 1];
             }
         }
-    }
+}
+return bins;
+}
+
+void show_histogram_text(vector <size_t> bins,size_t bin_count, size_t max_count){
+    const size_t SCREEN_WIDTH = 80;
+    const size_t MAX_ASTERISK = SCREEN_WIDTH - 6 - 1;
 
     bool scaling = false;
 
@@ -90,3 +105,10 @@ int main(){
         cout << endl;
     }
 }
+int main(){
+    size_t max_count;
+    auto in = input_data();
+    auto bins = make_histogram(in.numbers, in.bin_count);
+    show_histogram_text(bins,in.bin_count, max_count);
+return 0;
+}