lab-34/main.cpp

/*Ïîñëå ââîäà êîëè÷åñòâà ÷èñåë ïðåäëàãàéòå ïîëüçîâàòåëþ ãåíåðèðîâàòü èõ.
Ïðè ïîëîæèòåëüíîì îòâåòå çàïîëíèòå èñõîäíûé ìàññèâ ïðè ïîìîùè ôóíêöèè rand(): êàæäûé ýëåìåíò äîëæåí áûòü ñóììîé 12 åå ðåçóëüòàòîâ.

Óêàçàíèå.  íà÷àëå ïðîãðàììû äîáàâüòå srand(time(0)), ÷òîáû ñëó÷àéíûå ÷èñëà îòëè÷àëèñü ìåæäó çàïóñêàìè ïðîãðàììû (àíàëîã Randomize() â Pascal).
Äëÿ ñîñòàâëåíèÿ ýòàëîííîãî âûâîäà çàìåíèòå time(0) íà 42.*/
#include <time.h>
#include <iostream>
#include <vector>
#include <cstdlib>
using namespace std;

int main()
{

    //# Ïåðåìåííûå + íà÷àëî ïðîãðàììû(ââîäû)
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;

    size_t number_count, bin_count, max_count = 0;

    cerr << "Enter number count: ";
    cin >> number_count;

    vector<double> numbers(number_count);

    char gen_num;

    cerr << "randoma want? (y/n): ";
    cin >> gen_num;

    if (gen_num == 'y')
    {
        //srand(42);
        srand(time(0));

        for (int i = 0; i != number_count; i++)
        {
            double sum = 0;
            for (int j = 0; j < 12; j++)
            {
                sum += rand();
            }
            numbers[i] = sum;
        }
    }
    else
    {
        for (int i = 0; i != number_count; i++)
        {
            cerr << "Input number \n";
            cin >> numbers[i];
        }
    }

    cerr << "korzinki? ";
    cin >> bin_count;
    vector<double> bins(bin_count);

    double min = numbers[0];
    double max = numbers[0];

    for (double x : numbers)
    {
        if (x < min)
        {
            min = x;
        }
        else if (x > max)
        {
            max = x;
        }
    }
    double bin_size = (max - min) / bin_count;
    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 = 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]++;
        }
    }
    //---
    //# Âûâîä ãèñòû
    size_t height = 76 * (static_cast<double>(bin_count) / max_count);

    for (int i = 0; i != bin_count; i++)
    {
        if (bins[i] > max_count)
        {
            max_count = bins[i];
        }
    }

    if (max_count > 76)
    {
        for (int i = 0; i != bin_count; i++)
        {
            if (bins[i] < 100 && bins[i] > 10)
            {
                cout << " " << bins[i] << "|";
            }
            else if (bins[i] < 10)
            {
                cout << "  " << bins[i] << "|";
            }
            else
            {
                cout << bins[i] << "|";
            }

            if (bins[i] != max_count)
            {
                height = 76 * (bins[i] / max_count);
                for (int j = 0; j != height; j++)
                {
                    cout << "*";
                }
                cout << "\n";
            }
            else
            {
                height = 76 * 1.0;
                for (int j = 0; j != height; j++)
                {
                    cout << "*";
                }
                cout << "\n";
            }
        }
    }
    //-----
    else
    {
        for (int i = 0; i != bin_count; i++)
        {
            if (bins[i] < 100 && bins[i] > 10)
            {
                cout << " " << bins[i] << "|";
            }
            else if (bins[i] < 10)
            {
                cout << "  " << bins[i] << "|";
            }
            else
            {
                cout << bins[i] << "|";
            }

            for (int j = 0; j != bins[i]; j++)
            {
                cout << "*";
            }
            cout << "\n";
        }
    }
}
//  | 3 3 5 5 5 4 4 4 4 4