foo.cc: In function 'int main()':
foo.cc:15:26: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |         for(int i=0,j=0;i<s.size();i++){
      |                         ~^~~~~~~~~
foo.cc:17:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |                 if(j==t.size()){
      |                    ~^~~~~~~~~~

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