#include <iostream> #include <cmath> #include <vector> using namespace std; const size_t SCREEN_WIDTH = 80; const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1; struct Input { vector<double> numbers; size_t bin_count{}; }; Input input_data() { size_t number_count; cin >> number_count; Input in; in.numbers.resize(number_count); for (size_t i = 0; i < number_count; i++) { cin >> in.numbers[i]; } size_t bin_count; cin >> in.bin_count; return in; } void find_minmax(const vector<double>& numbers, double& min, double& max) { min = numbers[0]; for (double x : numbers) { if (x < min) { min = x; } else if (x > max) { max = x; } } } vector<size_t> make_histogram(const vector<double> numbers, size_t bin_count){ vector<size_t> bins(bin_count); double max, min = 0; find_minmax(numbers, min, max); double bin_size = (max - min) / bin_count; 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 = 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]++; } } return bins; } void show_histogram_text (vector<size_t> bins){ size_t max_count = bins[0]; for(size_t x: bins) { if(x > max_count) { max_count = x; } } if (max_count > MAX_ASTERISK) { for(size_t count: bins) { size_t height = MAX_ASTERISK * (static_cast<double>(count) /max_count); if (count < 10) { cout << " " << count << "|"; } else if (count < 100) { cout << " " << count << "|"; } else { cout << count << "|"; } for(size_t i = 0; i < height; i++) { cout << "*"; } cout << "\n"; } } else { for(size_t x : bins) { if (x < 10) { cout << " " << x << "|"; } else if (x < 100) { cout << " " << x << "|"; } else { cout << x << "|"; } for(size_t i = 0; i < x; i++) { cout << "*"; } cout << "\n"; } } } int main() { auto in = input_data(); auto bins = make_histogram(in.numbers, in.bin_count); show_histogram_text(bins); return 0; }