foo.cc: In function 'int main()':
foo.cc:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
foo.cc:24:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]),maxx=max(maxx,a[i]);
   ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~

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

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识别到23个测试点
{"receive":"2020-07-27T04:34:11.557Z","handle":"2020-07-27T04:34:11.557Z","cache_start":"2020-07-27T04:34:11.582Z","read_cases":"2020-07-27T04:34:12.045Z","judge":"2020-07-27T04:34:12.054Z","done":"2020-07-27T04:34:13.072Z"}