code: add curl

.gitignore

@@ -2,3 +2,5 @@
 /obj
 /lab01.depend
 /lab01.layout
+/curl
+

main.cpp

@@ -1,5 +1,6 @@
 #include <iostream>
 #include <vector>
+#include <curl/curl.h>
 #include "histogram.h"
 #include "text.h"
 #include "svg.h"
@@ -32,11 +33,11 @@ Input input_data(istream& in, bool prompt = true)
 
 int main()
 {
-    bool show_prompts; // User choice: true to show prompts, false to hide them
+    curl_global_init(CURL_GLOBAL_ALL);
+    bool show_prompts;
     cout << "Show prompts? (1 for yes, 0 for no): ";
     cin >> show_prompts;
-
     Input in = input_data(cin, show_prompts);
     vector<size_t> bins = make_histogram(in.numbers, in.bin_count);
-    show_histogram_text(bins);
+    show_histogram_svg(bins);
 }