Update app.py

app.py

@@ -150,7 +150,7 @@ def run_cpp_code(code: str):
             compiler, "-Ofast", "-std=c++17",
             "-march=armv8.5-a", "-mtune=apple-m1",
             "-mcpu=apple-m1", "-o", "optimized",
-            f"optimized-{current_time}.cpp"
+            f"/tmp/optimized-{current_time}.cpp"
         ]
         subprocess.run(
             compile_cmd, check=True, text=True, capture_output=True