diff --git a/main.cpp b/main.cpp
index 1c10aa4..02f1816 100644
--- a/main.cpp
+++ b/main.cpp
@@ -35,20 +35,20 @@ Input input_data(istream& inx, bool prompt)
     return in;
 }
 
-int main()
+int main(int argc, char* argv[])
 {
-    curl_global_init(CURL_GLOBAL_ALL);
+    if (argc > 1) {
+        cout << "argc = " << argc << endl;
+        for (int i = 0; i < argc; ++i) {
+            cout << "argv[" << i << "] = " << argv[i] << endl;
+        }
+        return 0;
+    }
 
-    bool prompt = true;
-    auto in = input_data(cin, prompt);
+    curl_global_init(CURL_GLOBAL_ALL);
 
+    auto in = input_data(cin, true);
     auto bins = make_histogram(in.numbers, in.bin_count);
-
-    double min, max;
-
-    double bin_size = (max - min) / in.bin_count;
-
     show_histogram_svg(bins);
 
-    return 0;
 }