foo.cc: In function ‘int main()’:
foo.cc:32:47: warning: comparison of integer expressions of different signedness: ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} and ‘int’ [-Wsign-compare]
   32 |                                 if(s[j].size()<i)continue;
      |                                    ~~~~~~~~~~~^~
foo.cc:39:46: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::__cxx11::basic_string<char>::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   39 |                                 for(int k=i;k<s[j].size();++k){
      |                                             ~^~~~~~~~~~~~

Found 10 testcases.