foo.cc: In function 'int main()':
foo.cc:12:9: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<a;
     ~~~~^~~

自豪的采用 HydroJudge 进行评测(github.com/hydro-dev/HydroJudge)

正在同步测试数据，请稍后
{"receive":"2020-07-28T08:12:15.454Z","handle":"2020-07-28T08:12:15.454Z","cache_start":"2020-07-28T08:12:15.461Z","read_cases":"2020-07-28T08:12:15.844Z","judge":"2020-07-28T08:12:15.844Z","done":"2020-07-28T08:12:16.166Z"}