foo.cc: In function 'int main()':
foo.cc:51:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&k,&m);
     ~~~~~^~~~~~~~~~~~~~~~~~~
foo.cc:55:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&x);
         ~~~~~^~~~~~~~~
foo.cc:61:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i = 1;i<=m;i++) scanf("%d",&sz[i]);
                             ~~~~~^~~~~~~~~~~~~

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

您没有提供题目配置文件。正在使用默认时空限制 1s 256M 。
识别到10个测试点
{"receive":"2020-07-22T09:54:33.710Z","handle":"2020-07-22T09:54:33.710Z","cache_start":"2020-07-22T09:54:33.716Z","read_cases":"2020-07-22T09:54:33.849Z","judge":"2020-07-22T09:54:33.850Z","done":"2020-07-22T09:54:36.731Z"}