cs-lab34.6/main.cpp

#include <iostream>
#include <vector>

using namespace std;

int main(){
    size_t bin_count, numbers_count;
    const size_t SCREEN_WIDTH = 80;
    const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
    cerr << "Enter number count and bin count:";
    cin >> numbers_count >> bin_count;
    vector<double> numbers ( numbers_count );
    for (size_t i=0; i < numbers_count; i++){
        cin >> numbers[i];
    }
    vector<size_t> bins ( bin_count );
    double minx = numbers[0];
    double maxx = numbers[0];
    for ( double x : numbers ){
        if ( x < minx ){
            minx = x;
        } else if ( x > maxx ){
            maxx = x;
        }
    }
    double bin_size = ( maxx - minx ) / bin_count;
    for (size_t i=0; i < numbers_count; i++ ){
        bool found = false;
        for (size_t j = 0; ( j < bin_count - 1 ) && !found; j++ ){
            auto lo = minx + j * bin_size;
            auto hi = minx + ( j + 1 ) * bin_size;
            if (lo <= numbers[i] && ( numbers[i] < hi )){
                bins[j]++;
                found = true;
            }
        }
        if ( !found ){
            bins[bin_count-1]++;
        }
    }

    size_t maxbin = bins[0];
    for (size_t i=1; i < bin_count; i++){
        if (maxbin < bins[i]){
            maxbin = bins[i];
        }
    }
    if (maxbin <=MAX_ASTERISK){
        for ( size_t i=0; i < bin_count; i++ ){
            if ((bins[i] < 1000)&&(bins[i] > 99)){
                cout << bins[i] << "|";
                for ( size_t j=0; j < bins[i]; j++ ){
                    cout << "*";
                }
            cout << endl;
            } else if ((bins[i] < 100)&&(bins[i]>9)) {
                cout << " " << bins[i] << "|";
                for ( size_t j=0; j < bins[i]; j++ ){
                    cout << "*";
                }
            cout << endl;
            } else if ( bins[i] < 10 ){
                cout << "  " << bins[i]<< "|";
                for ( size_t j=0; j < bins[i]; j++ ){
                    cout << "*";
                }
                cout << endl;
            }
        }
    } else {
        for (size_t i=0; i < bin_count; i++){
            size_t heightG= MAX_ASTERISK * (static_cast<double>(bins[i]) / maxbin);
            if ((bins[i] < 1000)&&(bins[i] > 99)){
                cout << bins[i] << "|";
                for ( size_t j=0; j < heightG; j++ ){
                    cout << "*";
                }
                cout << endl;
            } else if ((bins[i] < 100)&&(bins[i]>9)) {
                cout << " " << bins[i] << "|";
                for ( size_t j=0; j < heightG; j++ ){
                    cout << "*";
                }
                cout << endl;
            } else if ( bins[i] < 10 ){
                cout << "  " << bins[i]<< "|";
                for ( size_t j=0; j < heightG; j++ ){
                    cout << "*";
                }
                cout << endl;
            }
        }
    }
}