foo.cc: In function 'int main()':
foo.cc:8:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |         for(int i=0;i<a.size()&&i<b.size();i++)
      |                     ~^~~~~~~~~
foo.cc:8:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |         for(int i=0;i<a.size()&&i<b.size();i++)
      |                                 ~^~~~~~~~~
foo.cc:22:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |                 else if(i==a.size()-1&&i!=b.size()-1)
      |                         ~^~~~~~~~~~~~
foo.cc:22:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |                 else if(i==a.size()-1&&i!=b.size()-1)
      |                                        ~^~~~~~~~~~~~
foo.cc:27:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |                 else if(i==b.size()-1&&i!=a.size()-1)
      |                         ~^~~~~~~~~~~~
foo.cc:27:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |                 else if(i==b.size()-1&&i!=a.size()-1)
      |                                        ~^~~~~~~~~~~~
foo.cc:32:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |                 else if(a.size()==b.size()&&i==a.size()-1)
      |                                             ~^~~~~~~~~~~~

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