foo.c: In function 'main':
foo.c:4:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &a, &b);
  ^~~~~~~~~~~~~~~~~~~~~~

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":"2020-08-08T14:51:09.607Z","handle":"2020-08-08T14:51:09.607Z","cache_start":"2020-08-08T14:51:09.613Z","read_cases":"2020-08-08T14:51:10.070Z","judge":"2020-08-08T14:51:10.071Z","done":"2020-08-08T14:51:10.168Z"}