Problems by Gu Jin

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Bracket Matrix	0.01	327	341	115	34%	5.4Medium	en
Course Planning	0.08	1151	521	66	13%	7.2Hard	en
Manhattan Shopping	0.19	2463	93	10	11%	8.5Hard	en