foo.cc: In function 'int main()':
foo.cc:53:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&T);
                ^
foo.cc:59:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s",str+1);
                    ^

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

{"receive":"2020-04-02T07:58:18.742Z","handle":"2020-04-02T07:58:18.742Z","cache_start":"2020-04-02T07:58:18.748Z","read_cases":"2020-04-02T07:58:19.974Z","judge":"2020-04-02T07:58:19.975Z","done":"2020-04-02T07:58:21.806Z"}