Final Results: USACO 2020 December Contest, Platinum

Key:
* = Correct
x = Wrong Answer (including possibly empty or missing output file)
t = Timeout
c = Didn't Compile
! = Run-time error or exceeded memory limits

Pre-College Participants (Full List):

Country	Year	Name	Score		Problem 1																						Problem 2																									Problem 3
CHN	2021	Sijin Peng	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2023	Jiahao Huang	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	2022	Timothy Feng	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2022	Xiaoman Ding	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2023	Jiangqi Dai	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2021	Lingyu Jiang	841		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x
CHN	2023	WenZhe Zhang	810		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	t	t	*	*	*	*	*	t	t	t	t	t	t	t	t	t	t
CHN	2024	Siyuan Cheng	730		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	t	t	*	*	t	t	t	t	t	!	!	!	!	!	t	t	t	t	t
CHN	2022	Kai Luo	730		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	x	x	*	*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x

Pre-College Participants (USA only):

Country	Year	Name	Score		Problem 1																						Problem 2																									Problem 3
USA	2022	Timothy Feng	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	2022	Shibo Zhou	698		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2021	Kyoungwan Woo	698		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2022	Runqian Wang	698		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	t	t	!	!	t	t	t	t	t	!	!	!	!	!	!	!	!	!	!
USA	2025	Rain Jiang	683		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2021	Haojing Zhang	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	2021	Colin Galen	609		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	!	!	!	!	t	t	t	t	!	!	!	!	!	!	!	!			*	*	*	*	*	*	*	*	*	*	*	!	!	!	!	!	!	!	!	!	!
USA	2021	Siyong Huang	583		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	t	t	t	t	t			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	2022	Donggun Kwak	524		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	!	x	!	!	!	!	!	!	!	!	!	!			*	*	t	t	!	!	t	t	t	t	t	!	!	!	!	!	!	!	!	!	!
USA	2022	Anthony Wang	524		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	t	t	!	!	!	!	!	!	!	!	!	!	!	!	!	!	!	!	!

Observers:

Country	Name	Score		Problem 1																						Problem 2																									Problem 3
KOR	Jaehyun Koo	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	Andrew He	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
BLR	Yahor Dubovik	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
NLD	Erik-Jan Krijgsman	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
POL	Mateusz Radecki	968		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	t	t	*	*
SRB	Tadija Ã…Â ebez	768		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	!	!	!	!	t	t	t	t	!	!	!	!	!	!	!	!			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
BRA	Tiago Goncalves	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*																												*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
SJM	Kinmoe Natsu	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CAN	Kevin Sun	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*