/in/foo.cc: In member function 'huge huge::operator=(std::__cxx11::string)':
/in/foo.cc:116:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<r.length();i++)if(r[i]=='0')this->len--;else break;
              ~^~~~~~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:160:8: warning: unused variable 't' [-Wunused-variable]
  int n,t,r[202];cin>>n;string s;
        ^