foo.cc: In function 'int main()':
foo.cc:25:45: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[100]' [-Wformat=]
      &buffer, &avg, &judge, &gc, &wc, &paper);
                                             ^

自豪的采用jd5进行评测(github.com/masnn/jd5)