foo.cc: In function 'int main()':
foo.cc:14:14: error: 'tmp' was not declared in this scope; did you mean 'tm'?
   14 |  int o = n - tmp;
      |              ^~~
      |              tm
foo.cc:15:12: error: type '<type error>' argument given to 'delete', expected pointer
   15 |  delete(tmp);
      |            ^
foo.cc:16:10: error: type 'int' argument given to 'delete', expected pointer
   16 |  delete(n);
      |          ^

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