/in/foo.cc: In function 'int main()':
/in/foo.cc:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<str.length();i++)
                 ~^~~~~~~~~~~~~
/in/foo.cc:21:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<text.length();i++)
                 ~^~~~~~~~~~~~~~
/in/foo.cc:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<text.length();i++)
                 ~^~~~~~~~~~~~~~
/in/foo.cc:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(j=0;j<str.length();j++)
                     ~^~~~~~~~~~~~~
/in/foo.cc:42:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if(j==str.length()&&text[i+j]==' '&&text[i-1])
                ~^~~~~~~~~~~~~~