foo.cc: In function 'void A()':
foo.cc:13:2: error: expected ';' before '}' token
  }
  ^
foo.cc:12:6: warning: statement has no effect [-Wunused-value]
   a[i] 
   ~~~^
foo.cc: In function 'int main()':
foo.cc:19:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&a[i]);
   ~~~~~^~~~~~~~~~~~

正在同步测试数据，请稍后
自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。