Problems from ICPC SG Preliminary Contest 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
2048	4394	2126	48%	0.00	2023	1722	85%	2.6
Animal Classification	1158	235	20%	0.03	218	135	62%	7.1
Grid MST	1549	297	19%	0.07	309	180	58%	7.1
ICPC Tutorial	3718	950	26%	0.00	963	778	81%	3.4
Panda Chess	1420	299	21%	0.12	281	207	74%	6.2
Pivot	4116	1497	36%	0.00	1190	959	81%	3.2
Rectangle Land	688	120	17%	0.46	114	76	67%	7.4
Ski	478	78	16%	0.37	100	51	51%	8.3
Triangles	521	78	15%	0.19	111	57	51%	8.3
VisuAlgo Online Quiz	1632	530	32%	0.00	426	366	86%	3.8