cs-lab34/main.cpp

#include <iostream>
#include <vector>
#include <math.h>
using namespace std;
int main() {
	const size_t WIDTH = 80;
	const size_t MAX_ASTERISK = WIDTH - 3 - 1;
	size_t i, j;
	size_t number_count;
	cerr << "insert number count: \n";
	cin >> number_count;
	vector <double> numbers(number_count);
	cerr << "insert numbers: \n";
	for (i = 0; i < number_count; i++) {
		cin >> numbers[i];
	}
	size_t bin_count;
	cerr << "insert bin count: \n";
	cin >> bin_count;

	vector<size_t> bins(bin_count);
	double min, max;
	min = numbers[0];
	max = numbers[0];
	for (double x : numbers) {
		if (x < min) {
			min = x;
		}
		else if (x > max) {
			max = x;
		}
	}
	for (i = 0; i < number_count; i++) {
		for (j = number_count - 1; j > i; j--) {
			if (numbers[i] == numbers[j]) {
				numbers.erase(numbers.begin() + j);
				number_count = number_count - 1;
			}
		}
	}
	for (i = 0; i < number_count; i++) {
		cout << numbers[i];
	}
	cout << "\n";
	double bin_size = (max - min) / bin_count;
	for (i = 0; i < number_count; i++) {
		bool found = false;
		for (j = 0; (j < bin_count && !found); j++) {
			auto lo = min + j * bin_size;
			auto hi = min + (j + 1) * bin_size;
			if ((lo <= numbers[i]) && (hi > numbers[i])) {
				bins[j]++;
				found = true;
			}
		}
		if (!found) {
			bins[bin_count - 1]++;
		}
	}

	size_t maxcount = bins[0];
	for (size_t x : bins) {
		if (x > maxcount) {
			maxcount = x;
		}
	}

	size_t height = 0;
	for (i = 0; i < bin_count; i++) {
		if (bins[i] < 100) {
			cout << " ";
		}
		if (bins[i] < 10) {
			cout << " ";
		}
		cout << bins[i] << "|";
		if (maxcount > 76) {
			height = MAX_ASTERISK * (static_cast<double>(bins[i]) / maxcount);
		}
		for (j = 0; j < height; j++) {
			cout << "*";
		}
		cout << "\n";
	}
	return 0;
}