foo.cc: In function 'int main()':
foo.cc:19:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d\n",&x,&y,&n);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~

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

正在同步测试数据，请稍后
{"receive":"2020-07-04T08:37:05.481Z","handle":"2020-07-04T08:37:05.481Z","cache_start":"2020-07-04T08:37:05.490Z","read_cases":"2020-07-04T08:37:06.068Z","judge":"2020-07-04T08:37:06.069Z","done":"2020-07-04T08:37:07.684Z"}