Petrozavodsk Programming Camp Winter 2020 Day 9: Yuhao Du Contest 7

	#	Title
A	18753	Alternative Accounts
B	18754	Bitset Master
C	18755	Cyclic Distance
D	18756	Data Structure Quiz
E	18757	Evil Subsequence
F	18758	Fast as Ryser
G	18759	Geometry PTSD
H	18760	Heavy Stones
I	18761	Interesting Game
J	18762	Junk Problem
K	18763	Knowledge-Oriented Problem
L	18764	LCM Sum