Add everything.

buildandrun.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+set -e  # Exit on any error
+
+./build.sh || { echo "Build failed"; exit 1; }
+cd build || { echo "Cannot cd to build/"; exit 1; }
+./main || { echo "main failed"; exit 1; }
+cd .. || echo "Warning: failed to return to parent dir"