North America Championship 2020

	#	タイトル
A	18524	Another Coin Weighing Puzzle
B	18525	Mini Battleship
C	18526	Bomas
D	18527	All Kill
E	18528	Grid Guardian
F	18529	Hopscotch 50
G	18530	ICPC Camp
H	18531	Letter Wheels
I	18532	Editing Explosion
J	18533	Lunchtime Name Recall
K	18534	Rooted Subtrees
L	18535	Tomb Raider