foo.cc: In function 'int main()':
foo.cc:6:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |         for(int i=0;i<st.size();i++){
      |                     ~^~~~~~~~~~
foo.cc:13:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |         for(int i=0;i<st.size()-1;i++){
      |                     ~^~~~~~~~~~~~
foo.cc:15:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |                 for(int j=0;j<zm.size();j++){
      |                             ~^~~~~~~~~~
foo.cc:36:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |         for(int i=0;i<gs.size();i++){
      |                     ~^~~~~~~~~~
foo.cc:41:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         for(int i=0;i<gs.size();i++){
      |                     ~^~~~~~~~~~

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