Update to add Cuda to build system

main.cpp

@@ -1,3 +1,10 @@
+#include "hello_world.h"
+#include <iostream>
+
 int main() {
+  std::cout << "Starting CUDA example..." << std::endl; // Using endl to flush
+  check_cuda();
+  launch_hello_cuda();
+  std::cout << "Ending CUDA example" << std::endl; // Using endl to flush
   return 0;
-}
+}