foo.cc:22:39: warning: bad option '-fwhole-program' to pragma 'optimize' [-Wpragmas]
 #pragma GCC optimize("-fwhole-program")
                                       ^
foo.cc:31:41: warning: bad option '-fcse-skip-blocks' to pragma 'optimize' [-Wpragmas]
 #pragma GCC optimize("-fcse-skip-blocks")
                                         ^
foo.cc:45:51: warning: bad option '-funsafe-loop-optimizations' to pragma 'optimize' [-Wpragmas]
 #pragma GCC optimize("-funsafe-loop-optimizations")
                                                   ^
foo.cc:50:10: warning: bad option '-fwhole-program' to attribute 'optimize' [-Wattributes]
 int main(){
          ^
foo.cc:50:10: warning: bad option '-fcse-skip-blocks' to attribute 'optimize' [-Wattributes]
foo.cc:50:10: warning: bad option '-funsafe-loop-optimizations' to attribute 'optimize' [-Wattributes]

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

{"receive":"2020-08-06T02:43:35.862Z","handle":"2020-08-06T02:43:35.862Z","cache_start":"2020-08-06T02:43:35.868Z","read_cases":"2020-08-06T02:43:36.001Z","judge":"2020-08-06T02:43:36.004Z","done":"2020-08-06T02:43:37.905Z"}