foo.cc: In function 'int main()':
foo.cc:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<sizeof(word);i++) x=word[i];
                 ~^~~~~~~~
foo.cc:17:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<sizeof(word);i++)
                 ~^~~~~~~~
foo.cc:13:34: warning: unused variable 'l' [-Wunused-variable]
     string word;char x;int s[26],l=0,xn,nn,n;bool y=true;
                                  ^

自豪的采用jd5进行评测(github.com/masnn/jd5)

{"receive":"2020-02-23T07:20:36.428Z","handle":"2020-02-23T07:20:36.428Z","cache_start":"2020-02-23T07:20:36.428Z","read_cases":"2020-02-23T07:20:36.627Z","judge":"2020-02-23T07:20:36.628Z","done":"2020-02-23T07:20:37.381Z"}