foo.cc: In function 'int main()':
foo.cc:15:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   15 |  scanf("%lld",&T);
      |  ~~~~~^~~~~~~~~~~
foo.cc:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   19 |   scanf("%lld%lld%lld",&n,&t,&k);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:21:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |    scanf("%lld",&a[i].place);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~
foo.cc:23:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |    scanf("%lld",&a[i].value);
      |    ~~~~~^~~~~~~~~~~~~~~~~~~~

Found 5 testcases.
[Hydro](https://hydro.ac)提供评测服务