cs-lab34/main.cpp

#include <iostream>
#include <vector>

using namespace std;
const size_t SCREEN_WIDTH = 80;
const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;

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

Input
input_data(){
    size_t number_count;
    cerr << "Enter number count: ";
    cin >> number_count;
    Input in;
    in.numbers.resize(number_count);
    for(int i;i<number_count;i++)
    {
        cin >> in.numbers[i];
    }
    cerr << "Enter bin count: ";
    cin >> in.bin_count;
    return in;
}

void
find_minmax(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(vector<double> numbers, size_t bin_count) {
    vector <size_t> bins(bin_count);
    double min, max;
    find_minmax(numbers, min, max);
    size_t countt;
    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(auto bins, size_t bin_count){
        size_t max_count = 0;
        for (size_t i = 0; i < bin_count; i++){
        if(bins[i]>max_count)
        max_count = bins[i];
        }
    size_t height;
    for (size_t i = 0; i < bin_count; i++)
    {
        if (bins[i] < 100)
            cout << " ";
        if (bins[i] < 10)
            cout << " ";
        cout<<bins[i]<<"|";
        if(max_count>MAX_ASTERISK){
        for (size_t j = 0; j <(height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count)) ; j++)
        {
            cout<<"*";
        }
        cout<<endl;
        }
        else
        {
           for (size_t j = 0; j <bins[i] ; j++)
        {
            cout<<"*";
        }
        cout<<endl;
        }
    }


}


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