foo.cc: In function 'short int strcmp()':
foo.cc:6:22: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
    6 |         for(int i=0;i<min(a1.size(),a2.size());i++)
      |                     ~^~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:23:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |         for(int i=1;i<a1.size();i++)
      |                     ~^~~~~~~~~~
foo.cc:26:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for(int i=1;i<a2.size();i++)
      |                     ~^~~~~~~~~~

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