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@ -1,5 +1,7 @@
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#include <iostream>
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#include <vector>
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#include "histogram.h"
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#include "text.h"
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using namespace std;
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struct Input {
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@ -24,95 +26,11 @@ Input input_data()
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return in;
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}
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void find_minmax(const vector<double>& numbers, double& minimum, double& maximum) {
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minimum = numbers[0];
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maximum = numbers[1];
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for (double i : numbers) {
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if (i < minimum)
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minimum = i;
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if (i > maximum)
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maximum = i;
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}
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}
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vector<size_t> make_histogram(const vector<double>&numbers, size_t bin_count) {
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double maximum, minimum;
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float LL, LR;
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find_minmax(numbers, minimum, maximum);
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double bin_size = (maximum - minimum) / bin_count;
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vector <size_t> bins(bin_count);
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LL = minimum;
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LR = minimum + bin_size;
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for (int i = 0; i < bin_count; i++) {
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if (i == 0) {
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for (int b = 0; b < numbers.size(); b++) {
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if ((LL <= numbers[b]) && (numbers[b] < LR))
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bins[i] += 1;
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}
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LL = LR;
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LR = LL + bin_size;
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}
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if (i == (bin_count - 1)) {
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LR = maximum;
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for (int b = 0; b < numbers.size(); b++) {
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if ((LL < numbers[b]) && (numbers[b] <= LR))
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bins[i] += 1;
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}
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break;
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}
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if ((i != 0) && (i != (bin_count - 1))) {
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for (int b = 0; b < numbers.size(); b++) {
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if ((LL < numbers[b]) && (numbers[b] < LR))
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bins[i] += 1;
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}
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LL = LR;
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LR = LL + bin_size;
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}
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}
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return bins;
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}
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void show_histogram_text(size_t bin_count, const vector<double>&numbers) {
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vector <size_t> bins = make_histogram(numbers, bin_count);
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size_t height;
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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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int max_count = 0;
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for (int i = 0; i < bin_count; i++) {
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if (bins[i] > max_count)
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max_count = bins[i];
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}
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for (int i = 0; i < bin_count; i++) {
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if (bins[i] < 10) {
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cout << " ";
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}
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if (bins[i] < 100) {
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cout << " ";
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}
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cout << bins[i] << "|";
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if (max_count > 76) {
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height = MAX_ASTERISK * (static_cast<double>(bins[i]) / max_count);
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for (int b = 0; b < height; b++)
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cout << "*";
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}
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else {
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for (int b = 0; b < bins[i]; b++) {
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cout << "*";
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}
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}
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cout << endl;
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}
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}
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int main() {
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auto in = input_data();
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auto bins = make_histogram(in.numbers, in.bin_count);
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show_histogram_text(in.bin_count, in.numbers);
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return 0;
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}
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