13 вариант

main.cpp

@@ -11,68 +11,80 @@ using namespace std;
 struct Input {
     vector<double> numbers;
     size_t bin_count;
+    string stroke_color = "black";
 };
 
 Input input_data(istream& in, bool prompt) {
     Input inp;
     size_t number_count;
-    if (prompt){
-        cerr << "Enter number count: ";
-    }
+    if (prompt) cerr << "Enter number count: ";
     in >> number_count;
     inp.numbers.resize(number_count);
-    if (prompt){
-                cerr << "Enter numbers: ";
-        }
+    if (prompt) cerr << "Enter numbers: ";
     for (size_t i = 0; i < number_count; i++) {
         in >> inp.numbers[i];
     }
-
-    if (prompt) {
-            cerr << "Enter bin count: ";
-    }
+    if (prompt) cerr << "Enter bin count: ";
     in >> inp.bin_count;
     return inp;
 }
 
-size_t
-write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
+size_t write_data(void* items, size_t item_size, size_t item_count, void* ctx) {
     stringstream* buffer = reinterpret_cast<stringstream*>(ctx);
     size_t data_size = item_size * item_count;
-    (*buffer).write(reinterpret_cast<const char*>(items), data_size);
+    buffer->write(reinterpret_cast<const char*>(items), data_size);
     return data_size;
 }
 
-Input
-download(const string& adress){
+Input download(const string& address) {
     stringstream buffer;
     CURL* curl = curl_easy_init();
-    if(curl) {
-
-        CURLcode res;
-        curl_easy_setopt(curl, CURLOPT_URL, adress.c_str());
+    if (curl) {
+        curl_easy_setopt(curl, CURLOPT_URL, address.c_str());
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buffer);
-        res = curl_easy_perform(curl);
-        if (res != CURLE_OK){
+        CURLcode res = curl_easy_perform(curl);
+        if (res != CURLE_OK) {
             cerr << curl_easy_strerror(res);
             exit(1);
         }
         curl_easy_cleanup(curl);
     }
-
     return input_data(buffer, false);
 }
+
+void process_args(int argc, char* argv[], Input& input) {
+    for (int i = 1; i < argc; i++) {
+        if (string(argv[i]) == "-stroke") {
+            if (i + 1 < argc) {
+                input.stroke_color = argv[i + 1];
+                i++;
+            } else {
+                cerr << "Error: trebueca one argument.\n";
+                exit(1);
+            }
+        }
+    }
+}
+
 int main(int argc, char* argv[]) {
     Input input;
-    if (argc > 1) {
-        input = download(argv[1]);
-    } else {
+    process_args(argc, argv, input);
+
+    bool url_provided = false;
+    for (int i = 1; i < argc; i++) {
+        if (string(argv[i]) != "-stroke" && argv[i][0] != '-') {
+            input = download(argv[i]);
+            url_provided = true;
+            break;
+        }
+    }
+
+    if (!url_provided) {
         input = input_data(cin, true);
     }
 
     auto bins = make_histogram(input.numbers, input.bin_count);
-    show_histogram_svg(bins);
+    show_histogram_svg(bins, input.stroke_color);
     return 0;
 }
-