foo.cc: In function 'int main()':
foo.cc:38:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(Max==(s.size()>>1)){
        ^
foo.cc:14:8: warning: unused variable 'j' [-Wunused-variable]
  int i,j,maxright=0,m,Max=0;
        ^
foo.cc:15:6: warning: unused variable 'sum' [-Wunused-variable]
  int sum;
      ^
foo.cc:23:19: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
    hw[i]=min(hw[(m<<1)-i],hw[m]+m-i);
                   ^

自豪的采用 HydroJudger 进行评测(github.com/hydro-dev/HydroJudger)

{"receive":"2020-04-03T03:37:11.700Z","handle":"2020-04-03T03:37:11.700Z","cache_start":"2020-04-03T03:37:11.706Z","read_cases":"2020-04-03T03:37:12.274Z","judge":"2020-04-03T03:37:12.275Z","done":"2020-04-03T03:37:12.669Z"}