Sphere Online Judge (SPOJ)

list of partial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
429	Simple Numbers Conversion		286	45.47
452	Longest Common Subsequence		217	38.67	17 28
1486	The Ants in a Tree	1	59	78.07	50 50
2198	Leaves	26	929	86.93	22 28
2211	Mars Map	15	580	86.42	22 24
2224	Team Selection	17	507	90.80	15 19
2226	IOI01 Mobiles	7	478	90.95	15 22
2227	IOI05 Mountains	2	88	81.27	17 34
2228	IOI07 Pairs		54	88.60	50 50
2229	Lubenica	1	144	88.68	17 17
2249	Police	1	51	85.00	50 50
2255	IOI07 Miners	5	228	88.99	31 28
2304	Monkey island		29	94.26
2333	Billboard painting		23	93.94
2354	Distance		41	88.82
2663	Triangles		60	87.01
2798	Query on a tree again!	60	2408	87.17	24 22
2802	Triangles 2		2	100.00
3077	Copier Reduction	1	34	92.06	1 1
3079	Consecutive Digits	1	12	78.95	17 17
3080	Painter	1	18	88.89	17 17
3082	Primary X-Subfactor Series		13	100.00
3088	Packing		22	91.30
3095	Symmetric Order	1	32	95.35	1 1
3096	Overflowing Bookshelf		37	87.23
3097	Flow Layout		22	92.86	1 1
3098	Tree Grafting		20	94.92
3132	Server Relocation	1	18	98.48	17 17
3185	Linear Pachinko	2	25	100.00	1 1
3186	Frugal Search		16	100.00
3187	Go Go Gorelians	2	14	76.19	17 17
3188	Minimum Spanning Tree	112	8945	83.04	10 9
3448	Connect	1	9	100.00	26 26
3449	Sum of Squares		94	89.64
3450	Fast Width	1	38	89.22	17 17
3508	IOI07 Sails		1	100.00
3509	IOI07 Training	1	0	0.00
3510	IOI07 Flood		1	66.67
3547	IOI06 The Valley of Mexico		1	100.00
3548	IOI06 Pyramid		1	100.00
3552	IOI05 Birthday		2	100.00
3554	IOI05 Rivers		13	83.33
3610	BOI 97 - Factorial		94	85.64
3677	BOI 97 - Task Execution		22	84.00
4108	BOI 97 - Street Network		8	83.33
4257	First Number		218	75.68
4296	The God-land		15	94.29
4319	Homeless Jozo		13	91.67
4334	Highway Advertising		19	94.34
4353	Masking Tape		21	90.70