Получение аргументов программы
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95
main.cpp
95
main.cpp
@@ -1,8 +1,9 @@
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#include <curl/curl.h>
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#define CURL_STATICLIB
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#include <iostream>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "histogram.h"
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#include <curl/curl.h>
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#include "hictogram.h"
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#include "text.h"
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#include "svg.h"
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@@ -11,63 +12,73 @@ using namespace std;
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struct Input {
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vector<double> numbers;
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size_t bin_count{};
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size_t block_width{};
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};
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Input input_data(istream& in_stream = cin, bool prompt = true) {
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Input in;
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Input input_data(istream& in, bool prompt) {
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if (prompt) {
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cerr << "Enter number count, numbers and bin count: ";
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}
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size_t number_count;
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in >> number_count;
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if (prompt) {
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cerr << "Enter number count: ";
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}
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in_stream >> number_count;
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Input input;
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input.numbers.resize(number_count);
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in.numbers.resize(number_count);
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if (prompt) {
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cerr << "Enter " << number_count << " numbers: ";
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}
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for (size_t i = 0; i < number_count; i++) {
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in_stream >> in.numbers[i];
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in >> input.numbers[i];
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}
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if (prompt) {
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cerr << "Enter bin count: ";
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}
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in_stream >> in.bin_count;
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in >> input.bin_count;
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return in;
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return input;
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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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vector<size_t> bins(bin_count, 0);
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for (double num : numbers) {
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size_t index = min(bin_count - 1, static_cast<size_t>(num)); // ïðèìåð
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bins[index]++;
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size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
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size_t data_size = item_size * item_count;
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stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
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buffer->write(reinterpret_cast<const char*>(items), data_size);
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return data_size;
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}
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Input download(const string& address) {
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stringstream buffer;
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CURL* curl = curl_easy_init();
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if (curl) {
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curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
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curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
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curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
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CURLcode res = curl_easy_perform(curl);
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if (res != CURLE_OK) {
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cerr << "cURL error: " << curl_easy_strerror(res) << endl;
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curl_easy_cleanup(curl);
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exit(1);
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}
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return bins;
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}
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curl_easy_cleanup(curl);
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} else {
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cerr << "curl_easy_init() failed" << endl;
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exit(1);
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}
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return input_data(buffer, false);
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}
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int main(int argc, char* argv[]) {
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if (argc > 1) {
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cout << "argc = " << argc << endl;
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std::cout << "argc = " << argc << std::endl;
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for (int i = 0; i < argc; ++i) {
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cout << "argv[" << i << "] = \"" << argv[i] << "\"" << endl;
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std::cout << "argv[" << i << "] = " << argv[i] << std::endl;
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}
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return 0;
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}
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CURLcode res = curl_global_init(CURL_GLOBAL_ALL);
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if (res != CURLE_OK) {
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cerr << "cURL initialization failed: " << curl_easy_strerror(res) << endl;
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return 1;
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}
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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_svg(bins, in.block_width);
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curl_global_cleanup();
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// Åñëè àðãóìåíòîâ íåò, ïðîãðàììà íè÷åãî íå äåëàåò è ïðîñòî çàâåðøàåò
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return 0;
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}
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