foo.cc: In function 'int main()':
foo.cc:17:13: error: 'struct win' has no member named 'l'; did you mean 'le'?
   17 |         tmp.l=max(a.le,b.le);
      |             ^
      |             le
foo.cc:18:13: error: 'struct win' has no member named 'r'; did you mean 'ri'?
   18 |         tmp.r=min(a.ri,b.ri);
      |             ^
      |             ri
foo.cc:19:13: error: 'struct win' has no member named 't'; did you mean 'to'?
   19 |         tmp.t=max(a.to,b.to);
      |             ^
      |             to
foo.cc:20:13: error: 'struct win' has no member named 'b'; did you mean 'bo'?
   20 |         tmp.b=min(a.bo,b.bo);
      |             ^
      |             bo

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