Sphere Online Judge (SPOJ)

list of partial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
452	Longest Common Subsequence		220	38.71	17 28
1486	The Ants in a Tree	1	58	78.01	50 50
2211	Mars Map	16	589	86.66	22 24
2663	Triangles		59	86.36
2798	Query on a tree again!	62	2484	87.16	24 22
3077	Copier Reduction	1	35	92.19	1 1
3079	Consecutive Digits	1	14	83.33	17 17
3080	Painter	1	22	90.48	17 17
3082	Primary X-Subfactor Series		15	96.88
3088	Packing		24	88.52
3095	Symmetric Order	1	33	95.45	1 1
3096	Overflowing Bookshelf		37	87.23
3097	Flow Layout		22	92.86	1 1
3098	Tree Grafting		21	95.00
3132	Server Relocation	1	23	98.91	17 17
3185	Linear Pachinko	2	27	100.00	1 1
3186	Frugal Search		16	100.00
3187	Go Go Gorelians	2	15	77.27	17 17
3188	Minimum Spanning Tree	112	9017	83.06	10 9
3448	Connect	1	10	100.00	26 26
3449	Sum of Squares		96	89.91
3450	Fast Width	1	39	89.32	17 17
4108	BOI 97 - Street Network		8	83.33
4296	The God-land		15	94.29
4319	Homeless Jozo		13	91.67
4334	Highway Advertising		20	95.31
4353	Masking Tape		21	90.70
4596	A Marble Game	2	99	88.58	34 17
5167	Quadratics	-1	319	68.93	1 1
5201	Stacks of Bricks	1	893	84.06	1 1
5202	Stacks of Bricks 2		330	90.79
5535	Accelerated Reading		531	90.79	1 1
5536	Physics Grade		238	79.21	1 1
5537	Words		111	89.80
5538	Chain Mail		17	94.29
5539	Musical Frequencies		10	94.74
6409	Suffix Array	34	2529	88.98	18 16
7326	The World Final Hosting		0	0.00
7670	SCRAMBLE1		42	87.04
8559	Insulation		369	91.60
8595	Artistic Samhita		37	70.99
9028	DIEULINH	1	178	60.52	17 17
9548	The Journey of the Ant		3	100.00
9601	MMO85		13	94.12
9740	Closest Pair Problem	2	1031	83.51	21 11
11131	Palindrome or not		118	50.17
11400	Redoks		79	93.67
11733	Find our next planet!		14	94.12
11734	Take & Run		23	94.55
11839	Graphic Sequence	1	55	59.56	17 23