code: код из первой лабораторной

main.cpp

@@ -0,0 +1,140 @@
+#include <iostream>
+#include <vector>
+using namespace std;
+
+struct Input {
+    vector<double> numbers;
+    size_t bin_count{};
+};
+
+Input
+input_data() {
+    Input in;
+
+    size_t number_count;
+    cerr << "Enter quantity of numbers: ";
+    cin >> number_count;
+
+    vector<double> numbers(number_count);
+    in.numbers.resize(number_count);
+    cerr << "Enter numbers: ";
+    for (size_t i = 0; i < number_count; i++) {
+        cin >> in.numbers[i];
+    }
+
+    cerr << "Enter 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 (double x : numbers) {
+        if (x < min) {
+            min = x;
+        }
+        else if (x > max) {
+            max = x;
+        }
+    }
+}
+
+vector <size_t>
+make_histogram(const vector<double> numbers, size_t bin_count) {
+    double min;
+    double max;
+
+    find_minmax(numbers, min, max);
+
+    vector<size_t> bins(bin_count);
+    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]++;
+        }
+    }
+    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;
+
+    int max_count = 0;
+    for (int i =0; i<bin_count;i++){
+        if (bins[i]>max_count){
+            max_count=bins[i];
+        }
+    }
+    if (max_count>MAX_ASTERISK){
+        for (int i=0; i<bin_count; i++){
+            size_t height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
+            if (bins[i]<10){
+                cout<<"  "<<bins[i]<<"|";
+                for (int j=0;j<height;j++){
+                    cout<<"*";
+                }
+                cout<<endl;
+            }
+            else if(bins[i]<100){
+                cout<<" "<<bins[i]<<"|";
+                for (int j=0;j<height;j++){
+                    cout<<"*";
+                }
+                cout<<endl;
+            }
+            else{
+                cout<<bins[i]<<"|";
+                for (int j=0;j<height;j++){
+                    cout<<"*";
+                }
+                cout<<endl;
+            }
+
+    }
+    }else{
+        for (int i=0; i<bin_count; i++){
+            if (bins[i]<10){
+                cout<<"  "<<bins[i]<<"|";
+                for (int j=0;j<bins[i];j++){
+                    cout<<"*";
+                }
+                cout<<endl;
+            }
+            else if(bins[i]<100){
+                cout<<" "<<bins[i]<<"|";
+                for (int j=0;j<bins[i];j++){
+                    cout<<"*";
+                }
+            cout<<endl;
+            }
+            else{
+                cout<<bins[i]<<"|";
+                for (int j=0;j<bins[i];j++){
+                    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);
+}