/in/foo.cc: In function 'int main()':
/in/foo.cc:14:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(i<s.length())
        ~^~~~~~~~~~~
/in/foo.cc:27:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(j+1==t.length()&&i+1==s.length())
         ~~~^~~~~~~~~~~~
/in/foo.cc:27:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(j+1==t.length()&&i+1==s.length())
                          ~~~^~~~~~~~~~~~
/in/foo.cc:29:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(j+1==t.length()&&i+1!=s.length())
         ~~~^~~~~~~~~~~~
/in/foo.cc:29:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(j+1==t.length()&&i+1!=s.length())
                          ~~~^~~~~~~~~~~~
/in/foo.cc:9:22: warning: unused variable 'd' [-Wunused-variable]
  int i=0,j=0,count=0,d;
                      ^