/in/foo.cc: In function 'int main()':
/in/foo.cc:27:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         if(s.find("jszxoier")!=-1)
            ~~~~~~~~~~~~~~~~~~^~~~
/in/foo.cc:29:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(s.find("cow")!=-1)
                   ~~~~~~~~~~~~~^~~~
/in/foo.cc:34:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(int i=0;i<s.size();i++)
                         ~^~~~~~~~~
/in/foo.cc:40:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             while(s.find("rp",start)!=-1)
                   ~~~~~~~~~~~~~~~~~~^~~~