/in/P5.cpp: In function 'int main()':
/in/P5.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<str.size();i++){
                 ~^~~~~~~~~~~
/in/P5.cpp:17:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while(str[i]!=' '&&i<str.size()){i++;}
                            ~^~~~~~~~~~~
/in/P5.cpp:21:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(;j<str.size();){
          ~^~~~~~~~~~~
/in/P5.cpp:34:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int x=0;x<v.size();x++){
                ~^~~~~~~~~
/in/P5.cpp:35:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int y=x+1;y<v.size();y++){
                   ~^~~~~~~~~
/in/P5.cpp:53:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int q=0; q<vint.size(); q++)
                ~^~~~~~~~~~~~