Final Results: USACO 2021 January 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	2023	Jiahao Huang	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2021	Lingyu Jiang	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2021	Sijin Peng	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2022	Thomas Gu	867		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	x	x	x	*	*	*	*	*	*	*	*	x	x	*	x	x	x	*
USA	2023	Hankai Zhang	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2021	Richard Qi	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2025	Rain Jiang	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
CHN	2023	Jiangqi Dai	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2021	David Hu	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
TWN	2022	Elliot Liu	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CHN	2021	MingYang Deng	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x
CHN	2022	Xiaoman Ding	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	t	t	t	t	t	t	t	t	t	t	t	t
CHN	2022	Kai Luo	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x
HRV	2022	Dorijan Lendvaj	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CAN	2022	Allen Pei	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	t	t	t	*	*	*	*	*	*	t	t	t	t	t	t	t	t	t
CHN	2022	Kuowen Chen	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	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	2023	Hankai Zhang	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2021	Richard Qi	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2025	Rain Jiang	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2021	David Hu	850		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x
USA	2021	Haojing Zhang	750		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2022	Timothy Feng	733		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	x	t	t	t	*	*	*	t	t	t	t	t	t	t	t	t	t	t	t
USA	2022	Edward Chen	700		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2022	Runqian Wang	683		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x	x
USA	2021	Kyoungwan Woo	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	2022	Daniel Guan	600		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x
USA	2021	Timothy Qian	600		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	e	e	e	e	e	e	e	e	e	e	e	e			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x
USA	2022	Kyle Fu	600		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	x	x	x	*	*	*	*	*	*	t	t	t	t	t	x	t	x	t
USA	2022	Shiva Oswal	600		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	t	t	t	t	t	t	t	!	!	!	!	!			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x

Observers:

Country	Name	Score		Problem 1																						Problem 2																						Problem 3
NLD	Erik-Jan Krijgsman	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
KOR	JeYeon Si	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
POL	Mateusz Radecki	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	Andrew He	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
KOR	Jaehyun Koo	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CAN	Kevin Sun	1000		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
RUS	Maksim Gorokhovskii	900		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	t	t	t	t	t	*	*	*	t
MYS	Zi Song Yeoh	800		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	x	x	x	x	x	x	x	x	x	x	x	x			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	Jay Leeds	750		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	t	t	t	*	*	*	t	t	t	t	t	t	t	t	t	t	t	t
LTU	Tautvydas JasiÃ…Â«nas	700		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	t	t	t	t	t	t	t	t	t	t	t	t	t	t	t	t	t	t
KOR	Sunggwan Park	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
TWN	Hank Sheng	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*																									*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
USA	Ethan Morgan	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
CAN	Eric Hu	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
KOR	Seunghyun Joe	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*
JPN	Chtholly Nota Seniorious	667		*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*			*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*	*