build: добавил doctest

main.cpp

@@ -17,6 +17,7 @@ Input input_data()
     size_t number_count;
     cerr<<"Enter number count: ";
     cin >> number_count;
+    cerr << "Enter numbers : " << endl;
     Input in;
     in.numbers.resize(number_count);
     for (size_t i =0; i < number_count; i++)