#include #include using namespace std; struct Input { vector numbers; size_t bin_count{}; }; Input input_data() { size_t number_count; cerr << "Enter number count: "; cin >> number_count; Input in; in.numbers.resize(number_count); cerr << "Enter numbers: "; for (size_t i = 0; i < number_count; i++) { cin >> in.numbers[i]; } cerr << "Enter bin count: "; cin >> in.bin_count; return in; } void find_minmax(const vector& numbers, double& min, double& max) { min = numbers[0]; max = numbers[0]; for (double x : numbers) { if (x < min) { min = x; } else if (x > max) { max = x; } } } vector make_histogram(const vector& numbers, size_t bin_count){ size_t number_count = numbers.size(); vector bins(bin_count); double min, max; find_minmax(numbers, min, max); 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]++; } } return bins; } void show_histogram_text(const vector& bins){ const size_t SCREEN_WIDTH = 80; const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1; auto bin_count = bins.size(); size_t max_count = 0; for (size_t i = 0; i < bin_count; i++){ size_t Count = bins[i]; if (max_count < Count){ max_count = Count; } } if (max_count <= MAX_ASTERISK){ for (size_t i = 0; i < bin_count; i++){ size_t Count = bins[i]; if (Count < 100){ cout << " "; } if (Count < 10){ cout << " "; } cout << Count << "|"; for (size_t j = 0; j < Count; j++){ cout << "*"; } cout << "\n"; } } else{ for (size_t i = 0; i < bin_count; i++){ size_t Count = bins[i]; size_t height = 76 * (static_cast(Count) / max_count); if (Count < 100){ cout << " "; } if (Count < 10){ cout << " "; } cout << Count << "|"; for (size_t j = 0; j < height; j++){ cout << "*"; } cout << "\n"; } } } int main() { auto in = input_data(); auto bins = make_histogram(in.numbers, in.bin_count); show_histogram_text(bins); }