foo.cc: In function 'void updata(int, int, int)':
foo.cc:26:25: warning: value computed is not used [-Wunused-value]
     for(int i=x;i<Max1;i+lowbit(i))
                        ~^~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:36:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
foo.cc:41:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d%d",&a[i],&b[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。