2021 ICPC North America Division Championships

	#	제목
A	21585	Alien Microwave
B	21586	Another Substring Query Problem
C	21587	Borders
D	21588	Circle of Friends
E	21589	Finding Polly
F	21590	Investigating Imposters
G	21591	Laptop Sticker
H	21592	Longest Common Substring
I	21593	Simple Cron Spec
J	21594	Surveillance
K	21595	Train Line
L	21596	Window Shopping
M	21597	You Be the Judge!