/in/foo.cc: In function 'int main()':
/in/foo.cc:37:17: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   37 |                 if (dfs(len, 0, 1))
      |                 ^~
/in/foo.cc:39:25: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   39 |                         break;
      |                         ^~~~~
/in/foo.cc: In function 'bool dfs(int, int, int)':
/in/foo.cc:18:1: warning: control reaches end of non-void function [-Wreturn-type]
   18 | }
      | ^