cs-lab34/main.cpp

#include <iostream>
#include <vector>

const size_t SCREEN_WIDTH = 80;
const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;

using namespace std;


struct Input {
    vector<double> numbers;
    size_t bin_count{};
    size_t number_count{};
};


Input
input_data() {
    size_t number_count;
    cin >> number_count;
    Input in;
    in.numbers.resize(number_count);
    vector<double> numbers(number_count);
    for (size_t i = 0; i < number_count; i++) {
        cin >> in.numbers[i];
    }

size_t bin_count;
cin >> in.bin_count;
return in;
}

void
find_minmax(const vector<double>& numbers, double& min, double& max) {
    min = 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){
    vector<size_t> bins(bin_count);
    double max, min = 0;
    find_minmax(numbers, min, max);
    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;
}

vector<size_t> make_histogram_proc(const vector<double> numbers, size_t bin_count, vector<size_t> bins){
    vector<size_t> procent(bin_count);
    double sum = 0;
    for (size_t i = 0; i < bin_count; i++){
        sum = sum + bins[i];
    }
    double ost = 100;
    for (size_t i = 0; i< bin_count-1; i++){
        procent[i]=(bins[i]/sum)*100;
        ost = ost - procent[i];
    }
    procent[bin_count-1]=ost;
    return procent;
}

void show_histogram_text(vector<size_t> bins, size_t bin_count, vector<size_t> procent){

    size_t max_count = 0;
    for (size_t x: bins) {
        if (x > max_count) {
                max_count = x;
        }
    }

    if (max_count > MAX_ASTERISK) {
        for (size_t i = 0; i < bin_count ; i++) {
            size_t height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
            if (bins[i] < 10) {
                cout << "  " << procent[i] << "%|";
            }
            else if (bins[i] >= 100) {
                cout << procent[i] << "%|";
            }

            else {
                cout << " " << procent[i] << "%|";
            }

            for (size_t i = 0; i < height; i++) {
                cout << "*";
            }
            cout << "\n";
        }
    }

    else {
        for (size_t i = 0; i < bin_count; i++) {

            if (procent[i] < 10) {
                cout << "  " << procent[i] << "%|";
            }
            else if (procent[i] < 100){
                cout << " " << procent[i] << "%|";
            }
            else if (procent[i] = 100){
                cout << procent[i] << "%|";
            }

            for (size_t r = 0; r < bins[i]; r++)
                cout << "*";
                cout << "\n";
            }

    }

}

int main()
{
    auto in = input_data();
    auto bins = make_histogram(in.numbers, in.bin_count);
    auto procent = make_histogram_proc(in.numbers, in.bin_count, bins);
    show_histogram_text(bins, in.bin_count, procent);
    return 0;
}