foo.cc: In function 'int main()':
foo.cc:22:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |     scanf("%d%d%d",&l,&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~
foo.cc:25:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   25 |    scanf("%d",&a[i]);
      |    ~~~~~^~~~~~~~~~~~

正在同步测试数据，请稍后
Found 10 testcases.
[Hydro](https://hydro.ac)提供评测服务