Update utils.py

utils.py

@@ -18,7 +18,7 @@ def capture_output():
     finally:
         sys.stdout, sys.stderr = old_out, old_err
 
-def execute_code(code: str, stdin: str = "", language: str = "python") -> Tuple[str, str, str]:
+def execute_code(code: str, stdin: str = "", language: str = "cpp") -> Tuple[str, str, str]:
     """
     Execute code in the specified language and return (stdout, stderr, exception)