foo.cc:101:2: warning: missing terminating " character
  101 | n");
      |  ^
foo.cc:101:2: error: missing terminating " character
  101 | n");
      |  ^~~
foo.cc:101:1: error: 'n' does not name a type
  101 | n");
      | ^
foo.cc:102:1: error: expected declaration before '}' token
  102 | }
      | ^

[Hydro](https://hydro.ac)提供评测服务