View Compilation Error

0_0_39576337_3602.cpp:3:7: error: expected nested-name-specifier before 'int'
    3 | using int = long long;
      |       ^~~
0_0_39576337_3602.cpp:11:11: error: 'll' does not name a type; did you mean 'ull'?
   11 | constexpr ll infll = 0x3f3f3f3f3f3f3f3f;
      |           ^~
      |           ull