foo.cc: In function 'int main()':
foo.cc:18:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<word.size();i++)
              ~^~~~~~~~~~~~

自豪的采用jd5进行评测(github.com/masnn/jd5)

{"receive":"2020-02-23T06:16:15.621Z","handle":"2020-02-23T06:16:15.621Z","done":"2020-02-23T06:16:16.366Z"}