Sphere Online Judge (SPOJ)

list of partial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
3080	Painter	1	16	87.10	17 17
2798	Query on a tree again!	59	2236	87.08	24 22
7670	SCRAMBLE1		42	87.04
2198	Leaves	25	906	86.74	22 28
3610	BOI 97 - Factorial		93	86.70
2663	Triangles		57	86.67
13766	Storm		5	86.67
32870	Olympic	1	65	86.52	1 1
26751	LRU cache	2	28	86.36	26 26
20248	Rectangle		34	86.29
2211	Mars Map	16	555	86.28	24 24
16237	Policija		19	85.71
13567	Very Triangular		19	84.62
5201	Stacks of Bricks	1	892	84.04	1 1
14702	Yet another range difference query!	15	270	84.01	27 21
2249	Police	1	45	83.72	50 50
9740	Closest Pair Problem	2	1027	83.50	21 11
3677	BOI 97 - Task Execution		20	83.33
4108	BOI 97 - Street Network		8	83.33
21714	Factory		25	83.33
3188	Minimum Spanning Tree	111	8722	83.12	10 9
4482	KOKOS	1	25	82.76	17 17
41069	Elijah and the mushroom forest		13	82.50
8601	Brainfuck Geek!!! (Bonus Question)	-1	259	81.39	1 1
2227	IOI05 Mountains	2	86	80.87	17 34
17269	Dispatching	1	32	80.73	26 17
16697	Firing		13	80.43
17474	Periodicity		2	80.00
5536	Physics Grade		236	79.12	1 1
3079	Consecutive Digits	1	12	78.95	17 17
3187	Go Go Gorelians	2	13	78.95	17 17
1486	The Ants in a Tree	1	53	77.48	50 50
17540	Simplifying the Farm		27	77.24
4257	First Number		215	75.56
13561	Kart		22	75.00	1 1
16553	Starcraft		6	75.00	1 1
19590	DEBUG		8	73.91
19822	DOMINO		8	72.73
16550	Money, Money, Money		18	72.00
8595	Artistic Samhita		37	70.99
34983	Cairo Tower		60	70.83
26750	FIFO cache		9	69.23
5167	Quadratics	-1	317	68.83	1 1
13564	Time		73	68.50
15911	Smugglers		11	67.86
34764	Test Problem		51	64.52	50 50
13571	Lazy Decision		4	63.64
15913	Big number only		6	62.50
16438	Cruise		6	61.90
9028	DIEULINH	1	178	60.48	17 17