96 строки
1.9 KiB
C++
96 строки
1.9 KiB
C++
#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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#include "histogram_internal.h"
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#include "svg.h"
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#include <curl/curl.h>
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#include <sstream>
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#include <string>
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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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};
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//ââîä
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Input
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input_data(istream& inp,bool promt) {
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size_t number_count;
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if(promt){
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cerr << "Ââåäèòå êîëè÷åñòâî îöåíîê: ";
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}
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inp >> number_count;
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Input in;
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in.numbers.resize(number_count);
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if(promt){
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cerr << "Ââåäèòå îöåíêè:\n";
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}
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for (size_t i = 0; i < number_count; i++) {
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inp >> in.numbers[i];
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}
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if(promt){
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cerr << "Ââåäèòå êîëè÷åñòâî êîðçèí: ";
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}
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inp >> in.bin_count;
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return in;
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}
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size_t
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write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
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stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
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size_t data_size = item_size * item_count;
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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
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download(const string& address) {
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stringstream buffer;
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// TODO: çàïîëíèòü áóôåð.
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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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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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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if(res != 0){
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cerr << curl_easy_strerror(res);
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exit(1);
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}
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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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curl_global_init(CURL_GLOBAL_ALL);
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setlocale(LC_ALL, "Russian");
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Input input;
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if(argc > 1){
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input = download(argv[1]);
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}
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else{
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input = input_data(cin, true);
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}
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const auto bins = make_histogram(input.numbers, input.bin_count);
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show_histogram_svg(bins);
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return 0;
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}
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