Petrozavodsk Programming Camp Winter 2018 Day 4: Yandex Cup 2018

	#	タイトル
A	19280	Ability Draft
B	19281	Short Random Problem
C	19282	Block, Stock and Two Smoking Galaxy Notes
D	19283	Lunch Queue
E	19284	Oneness
F	19285	Shuffle
G	19286	Piecewise Linearity
H	19287	Sketch
I	19288	≤ or ≥
J	19289	Stairways
K	19290	Hiding a Tree