foo.cc: In function 'int main()':
foo.cc:47:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
foo.cc:56:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d", &u, &v, &w);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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

正在同步测试数据，请稍后
{"receive":"2020-06-25T11:40:17.405Z","handle":"2020-06-25T11:40:17.405Z","cache_start":"2020-06-25T11:40:17.412Z","read_cases":"2020-06-25T11:40:17.979Z","judge":"2020-06-25T11:40:17.980Z","done":"2020-06-25T11:40:20.057Z"}