cs-lab34/main.cpp

#include <iostream>
#include <cmath>
#include <vector>
using namespace std;
int main()
{
    size_t count, bin_count;

    size_t i, j;
    float min, max, bin_size;
    float low, hi;
    cerr << "Count= ";
    cin >> count;
    cerr << "Bin_count= ";
    cin >> bin_count;
    vector<double>numbers(count);
    vector<size_t>bins(bin_count);
    for (i = 0; i < count; i++)
    {
        cin >> numbers[i];
    }
    min = numbers[0];
    max = numbers[0];
    for (i = 0; i < count; i++)
    {
        if (numbers[i] > max)
            max = numbers[i];
        if (numbers[i] < min)
            min = numbers[i];
    }
    bin_size = (max - min) / bin_count;
    low = min;
    hi = low + bin_size;
    for (i = 0; i < count; i++)
    {
        bool found = false;
        for (j = 0; (j < bin_count - 1) && !found; j++)
        {
            low = min + j * bin_size;
            hi = min + (j + 1) * bin_size;
            if ((low <= numbers[i]) && (numbers[i] < hi))
            {
                bins[j]++;
                found = true;
            }
        }
        if (found == false)
        {
            bins[bin_count - 1]++;
        }
    }


    size_t sum_bins = 0;
    for (size_t bin : bins)
    {
        sum_bins += bin;
    }
    size_t sred_bin = sum_bins / bin_count;

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

    size_t max_bin = bins[0];
    for (size_t bin : bins)
        if (bin > max_bin)
            max_bin = bin;
    for (size_t bin : bins)
    {
        int height = bin;
        if (max_bin > MAX_ASTERISK)
        {
            height = MAX_ASTERISK * (static_cast<double>(bin) / max_bin);
        }
        if (bin < 100)
            cout << " ";
        if (bin < 10)
            cout << " ";
        cout << bin << "|";
        if (height > sred_bin) {
            for (size_t i = 0; i < sred_bin; i++)
                cout << "*";
            for (size_t i = sred_bin; i < height; i++)
                cout << "+";
        }
        else {
            for (size_t i = 0; i < height; i++)
                cout << "*";
            for (size_t i = height; i < sred_bin; i++)
                cout << "-";
        }
        cout << endl;
    }
    return 0;
}