foo.c: In function 'main':
foo.c:4:5: 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":"2020-08-12T13:02:44.683Z","handle":"2020-08-12T13:02:44.683Z","cache_start":"2020-08-12T13:02:44.693Z","read_cases":"2020-08-12T13:02:45.122Z","judge":"2020-08-12T13:02:45.122Z","done":"2020-08-12T13:02:45.200Z"}