Problems by Gu Jin

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Bracket Matrix	0.01	311	403	131	33%	5.2Medium	en
Course Planning	0.08	1151	632	79	12%	7.7Hard	en
Manhattan Shopping	0.19	2463	152	15	10%	8.4Hard	en