Update app.py

app.py

@@ -11,7 +11,7 @@ from code_editor import code_editor
 
 lang_map = {
     "Python": ["python", "python", "# Don't Worry, You Can't Break It. We Promise.\nprint('Hello World')\n"],
-    "CPP": ["c_cpp", "cpp", "// Don't Worry, You Can't Break It. We Promise.\n// For Cpp, please make sure the program lasts at least 1 ms.\n#include <iostream>\\n\\nint main() {\\n    std::cout << \\\"Hello, World!\\\" << std::endl;\\n    return 0;\\n}\n"],
+    "CPP": ["c_cpp", "cpp", "// Don't Worry, You Can't Break It. We Promise.\n// For Cpp, please make sure the program lasts at least 1 ms.\n#include <iostream>\nint main() {\n    std::cout << \"Hello, World!\" << std::endl;\n    return 0;\n}\n"],
     "Java": ["java", "java", "// Don't Worry, You Can't Break It. We Promise.\nclass HelloWorld {\n    public static void main(String[] args) {\n        System.out.println(\"Hello, World!\"); \n    }\n}\n"],
     "JavaScript": ["javascript", "javascript", "// Don't Worry, You Can't Break It. We Promise.\nconsole.log('Hello World!');\n"],
     "Golang": ["golang", "go", "// Don't Worry, You Can't Break It. We Promise.\npackage main\n\nimport \"fmt\"\n\nfunc main() {\n    fmt.Println(\"Hello, World!\")\n}\n"],