foo.cc: In function 'int get()':
foo.cc:28:1: warning: control reaches end of non-void function [-Wreturn-type]
   28 | }
      | ^
foo.cc: In function 'void openfile()':
foo.cc:1066:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
 1066 |     freopen("game.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
foo.cc:1067:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
 1067 |     freopen("game.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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