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#include <vector>
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#include <iostream>
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using namespace std;
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struct Input
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{
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vector<double> numbers;
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size_t bin_count{};
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};
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Input input_data()
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{
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Input in;
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size_t number_count;
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cerr << "Enter number count: ";
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cin >> number_count;
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in.numbers.resize(number_count);
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cerr << "Enter numbers: ";
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for (size_t i = 0; i < number_count; i++) {
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cin >> in.numbers[i];
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}
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size_t bin_count;
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cerr << "Enter bin count: ";
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cin >> in.bin_count;
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return in;
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}
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int main()
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{
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const size_t SCREEN_WIDTH = 80;
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const size_t MAX_ASTERISK = SCREEN_WIDTH - 3 - 1;
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Input in = input_data();
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size_t number_count;
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cerr << "Enter number count: ";
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cin >> number_count;
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vector<double> numbers(number_count);
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cerr << "Enter numbers: ";
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for (size_t i = 0; i < number_count; i++)
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{
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cin >> numbers[i];
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}
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size_t bin_count;
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cerr << "Enter bin count: ";
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cin >> bin_count;
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vector<size_t> bins(bin_count, 0);
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double min = numbers[0];
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double max = numbers[0];
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for (double x : numbers)
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{
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if (x < min)
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{
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min = x;
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}
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else if (x > max)
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{
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max = x;
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}
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}
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double bin_size = (max - min) / bin_count;
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for (size_t i = 0; i < number_count; i++)
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{
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bool found = false;
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for (size_t j = 0; (j < bin_count - 1) && !found; j++)
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{
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auto lo = min + j * bin_size;
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auto hi = min + (j + 1) * bin_size;
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if ((lo <= numbers[i]) && (numbers[i] < hi))
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{
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bins[j]++;
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found = true;
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}
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}
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if (!found)
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{
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bins[bin_count - 1]++;
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}
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}
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size_t max_bin_count = 0;
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for (size_t bin : bins)
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{
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if (bin > max_bin_count)
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{
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max_bin_count = bin;
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}
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}
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if (max_bin_count <= MAX_ASTERISK)
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{
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for (size_t i = 0; i < bin_count; i++)
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{
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if (bins[i] < 10) cout << " ";
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cout << " " << bins[i] << "|";
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for (size_t j = 0; j < bins[i]; j++)
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{
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cout << "*";
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}
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cout << endl;
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}
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}
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else
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{
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for (size_t i = 0; i < bin_count; i++)
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{
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size_t height = static_cast<size_t>(MAX_ASTERISK * (static_cast<double>(bins[i]) / max_bin_count));
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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if (bins[i] < 100) cout << " ";
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if (bins[i] < 10) cout << " ";
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cout << bins[i] << "|";
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for (size_t j = 0; j < height; j++)
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{
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cout << "*";
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}
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cout << endl;
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}
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}
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return 0;
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}
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