Problems from LTH Challenge 2021

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
Bluetooth	0.00	93	967	836	86%	1.4 - 2.1Easy	da en sv
Bridge building	0.29	5452	31	6	19%	3.4 - 9.0Hard	da en
Distracted	0.01	215	373	157	42%	1.6 - 7.3Hard	da en
Julmust	0.00	61	628	524	83%	2.2 - 2.3Easy	da en
Keylogger	0.00	331	940	750	80%	1.3 - 2.5Easy	da en
Ortest Path	0.01	2270	64	18	28%	2.7 - 9.0Hard	da en
Roller Coaster Assembly	0.04	909	57	23	40%	4.0 - 7.8Hard	da en
SMIL	0.00	29	4344	3930	90%	1.3 - 1.5Easy	da en sv