Problems by Gu Jin

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Bracket Matrix	0.01	311	383	127	33%	5.3Medium	en
Course Planning	0.08	1151	607	77	13%	7.6Hard	en
Manhattan Shopping	0.19	2463	134	14	10%	8.6Hard	en