#include #include using namespace std; int main() { size_t number_count, bin_count; double min, max, bin_size; cerr << "Enter the number of elements: "; cin >> number_count; vector numbers(number_count); cerr << "\nEnter " << number_count << " elements:" << endl; for (size_t i = 0; i < number_count; i++) { cin >> numbers[i]; } cerr << "Enter the number of bins: "; cin >> bin_count; min = numbers[0]; max = numbers[0]; for (double x : numbers) { if (x < min) { min = x; } else { if (x > max) { max = x; } } } bin_size = (max - min) / bin_count; vector bins(bin_count, 0); 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 ((numbers[i] >= lo) && (numbers[i] <= hi)) { bins[j]++; found = true; } } if (!found) { bins[bin_count - 1]++; } } size_t max_count = bins[0]; for (size_t i = 1; i < bin_count; i++) { if (bins[i] > max_count) { max_count = bins[i]; } } const size_t SCREEN_WIDTH = 80; const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1; short space_count; cerr << "\nHistogram:" << endl; 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 if (bins[i] >= 100 && bins[i] < 1000) { space_count = 0; } for (size_t k = 0; k < space_count; k++) { cout << " "; } cout << bins[i]; cout << "|"; for (size_t j = 0; j < bins[i]; j++) { cout << "*"; } 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 if (bins[i] >= 100 && bins[i] < 1000) { space_count = 0; } for (size_t k = 0; k < space_count; k++) { cout << " "; } cout << bins[i]; cout << "|"; size_t height = static_cast(MAX_ASTERISK * (static_cast(bins[i]) / max_count)); for (size_t j = 0; j < height; j++) { cout << "*"; } cout << "\n"; } } return 0; }