/in/foo.cc: In function 'void add(int, int)':
/in/foo.cc:20:5: error: 'te' was not declared in this scope
  ++ te;
     ^~
/in/foo.cc:20:5: note: suggested alternative: 't'
  ++ te;
     ^~
     t
/in/foo.cc: In function 'int main()':
/in/foo.cc:41:2: error: 'sort' was not declared in this scope
  sort(p + 1 , p + n + m + 2 , cmp1);
  ^~~~
/in/foo.cc:41:2: note: suggested alternative: 'qsort'
  sort(p + 1 , p + n + m + 2 , cmp1);
  ^~~~
  qsort