foo.cc: In function 'int main()':
foo.cc:46:7: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
   b2[p]++;
   ~~~~^
foo.cc:32:7: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized]
   b1[p]++;
   ~~~~^

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

{"receive":"2020-05-23T09:07:45.348Z","handle":"2020-05-23T09:07:45.348Z","cache_start":"2020-05-23T09:07:45.354Z","read_cases":"2020-05-23T09:07:45.935Z","judge":"2020-05-23T09:07:45.936Z","done":"2020-05-23T09:07:47.699Z"}