cs-lab34/main.cpp

#include <iostream>
#include <vector>
#include <math.h>

using namespace std;

int main()
{
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
    size_t number_count, bin_count;
    cerr << "Enter number count: ";
    cin >> number_count;
    cerr << "Enter bin count: ";
    cin >> bin_count;
    vector<double> numbers(number_count);
    vector<size_t> bins(bin_count);
    cerr << "Enter numbers: ";
    for (size_t i = 0; i < number_count; i++) {
        cin >> numbers[i];
    }
    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]++;
        }
    }
    size_t max_count = bins[0];
    size_t count = 0;
    short space_count;
    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++) {
            if (bins[i] < 10) {
                space_count = 2;
            } else if (bins[i] >= 10 && bins[i] < 100) {
                space_count = 1;
            } else {
                space_count = 0;
            }
            for (size_t k = 0; k < space_count; k++) {
                cout << " ";
            }
            cout << bins[i];
            cout << "|";
            if (i == 0){
                for (size_t j = 0; j < bins[i]; j++) {
                    if (j != bins[i+1]) {
                        cout << "*";
                    } else if (j == bins[i+1]){
                        cout << "V";
                        }
                    }
                } else if (i == bin_count-1){
                for (size_t j = 0; j < bins[i]; j++) {
                    if (j != bins[i-1]) {
                        cout << "*";
                    } else if (j == bins[i-1]){
                        cout << "^";
                    }
                }
            } else {
                for (size_t j = 0; j < bins[i]; j++) {
                    if (j != bins[i-1]-1 && j != bins[i+1]-1) {
                        cout << "*";
                    } else if (j == bins[i-1]-1 && j == bins[i+1]-1){
                        cout << "N";
                    } else if (j == bins[i-1]-1){
                        cout << "^";
                    } else if (j == bins[i+1]-1){
                        cout << "V";
                    }
                }
            }
            cout << "\n";
        }
    } /*else {
        for (size_t i = 0; i < bin_count; i++) {
            if (bins[i] < 10) {
                space_count = 2;
            } else if (bins[i] >= 10 && bins[i] < 100) {
                space_count = 1;
            } else {
                space_count = 0;
            }
            for (size_t k = 0; k < space_count; k++) {
                cout << " ";
            }
            cout << bins[i];
            cout << "|";
            size_t height = static_cast<size_t>(MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count));
            for (size_t j = 0; j < height; j++) {
                cout << "*";
            }
            cout << "\n";
        }
    }*/
    system("pause");

    return 0;
}