#include <iostream> #include <vector> using namespace std; struct Input { vector<double> numbers; size_t bin_count{}; }; Input input_data() { Input in; size_t number_count; cin >> number_count; in.numbers.resize(number_count); vector<double> numbers(number_count); for (size_t i = 0; i < number_count; i++) { cin >> in.numbers[i]; } cin >> in.bin_count; return in; } void find_minmax( const vector<double>& numbers, double& minN, double& maxN) { minN = numbers[0]; maxN = numbers[0]; for (double x: numbers) { if (minN > x) { minN = x; } if (maxN < x) { maxN = x; } } } vector<size_t> make_histogram(const vector<double>& numbers, size_t bin_count) { double minN, maxN; find_minmax( numbers, minN, maxN); vector <size_t> bins(bin_count); double diff = (maxN - minN) / bin_count; size_t max_count = 0; 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 = minN + j * diff; auto hi = minN + (j + 1) * diff; if ((lo <= numbers[i]) && (hi > numbers[i])) { bins[j]++; if (bins[j] > max_count) { max_count = bins[j]; } found = true; } } if(!found) { bins[bin_count - 1]++; if (bins[bin_count - 1] > max_count) { max_count = bins[bin_count - 1]; } } } return bins; } void show_histogram_text(const vector <size_t>& bins,size_t bin_count, size_t max_count) { const size_t SCREEN_WIDTH = 80; const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1; bool scaling = false; if (max_count > MAX_ASTERISK) { scaling = true; } for (size_t i = 0; i < bin_count; i++) { if (bins[i] < 10) { cout << " "; } else if (bins[i] < 100) { cout << " "; } else { cout << ""; } cout << bins[i] << '|'; size_t number_of_stars = bins[i]; if (scaling) { if (bins[i] == max_count) { number_of_stars = MAX_ASTERISK * 1.0; } else { number_of_stars = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count); } } for (size_t j = 0; j < number_of_stars; j++) { cout << '*'; } cout << endl; } } int main() { size_t max_count; auto in = input_data(); auto bins = make_histogram(in.numbers, in.bin_count); show_histogram_text(bins, in.bin_count, max_count); }