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:62:34: 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":"2020-07-22T09:49:19.628Z","handle":"2020-07-22T09:49:19.628Z","cache_start":"2020-07-22T09:49:19.634Z","read_cases":"2020-07-22T09:49:19.746Z","judge":"2020-07-22T09:49:19.746Z","done":"2020-07-22T09:49:22.525Z"}