foo.cc: In function 'int main()':
foo.cc:25:20: warning: 'edy' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |   if (tp.first==edx&&tp.second==edy){
      |       ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
foo.cc:25:3: warning: 'edx' may be used uninitialized in this function [-Wmaybe-uninitialized]
   25 |   if (tp.first==edx&&tp.second==edy){
      |   ^~

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