Petrozavodsk Programming Camp Winter 2018 Day 3: AtCoder Contest

	#	タイトル
A	19269	Vacant Seat
B	19270	Colorful Doors
C	19271	Construct Point
D	19272	Knapsack and Queries
E	19273	XorTree
F	19274	Antennas On Tree
G	19275	Rectangles
H	19276	Generalized Insertion Sort
I	19277	ADD, DIV, MAX
J	19278	Simple APSP Problem
K	19279	Forest Task