cs-lab34/lab34.cpp

#include <iostream>
#include <vector>
using namespace std;

int main() {
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
    size_t number_count;
    cerr << "Enter amount of numbers \n";
    cin >> number_count;
    vector<double> numbers(number_count);
    for (size_t i = 0; i < number_count; i++) {
        cerr << "Input number " << i + 1 << endl;
        cin >> numbers[i];
    }
    double minc, maxc;
    minc = maxc = numbers[0];
    for (size_t i = 1; i < number_count; i++) {
        if (numbers[i] < minc) {
            minc = numbers[i];
        }
        else if (numbers[i] > maxc) {
            maxc = numbers[i];
        }
    }
    size_t bin_count;
    cerr << "Input number of bins \n";
    cin >> bin_count;
    vector<size_t> bins(bin_count);
    double bin_size = (maxc - minc) / bin_count;
    size_t bin_max_size = 0;
    for (size_t i = 0; i < number_count; i++) {
        bool found = false;
        for (size_t j = 0; (j < bin_count - 1) && !found; j++) {
            auto lo = minc + j * bin_size;
            auto hi = minc + (j + 1) * bin_size;
            if ((lo <= numbers[i]) && (numbers[i] < hi)) {
                bins[j]++;
                found = true;
                if (bins[j] > bin_max_size) {
                    bin_max_size = bins[j];
                }
            }
        }
        if (!found) {
            bins[bin_count - 1]++;
            if (bins[bin_count - 1] > bin_max_size) {
                bin_max_size = bins[bin_count - 1];
            }
        }
    }
    double k = double(MAX_ASTERISK) / bin_max_size;
    if (k > 1) {
        k = 1;
    }
    for (size_t bin = 0; bin < bin_count; bin++) {
        if (bins[bin] < 100) {
            cout << " ";
        }
        if (bins[bin] < 10) {
            cout << " ";
        }
        cout << bins[bin] << "|";
        for (size_t i = 0; i < bin * k; i++) {
            cout << "*";
        }
        cout << endl;
    }
    return 0;
}