Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
34808	Crosswords	-1	15	46.73
35719	Query on an array I	-1	32	24.04	9 9
36963	Nobabs Treasure Hunt	-1	71	62.30	1 1
37851	Mã Caesar	-1	3	87.50
244	Internally Stable Sets		86	17.84
361	Bottom Coder (Hard)		108	24.60
490	Armies		319	31.09
491	The Cursed Room		156	36.87
509	6-Kolorowanie Grafów Planarnych		81	20.20
527	Just for Fun (Easy)		108	8.22
536	How many Fibs		587	24.84
644	Byteland Money Exchange		19	30.95
692	Fruit Farm		239	27.09	17 17
1118	Snowman		554	33.60
1238	Special Nim Game		306	61.25	11 11
1239	Recurrence Equation Finder		20	68.42
1279	Run Length Decoding		85	37.42	1 1
1394	Dividing Spaces		17	58.06
1474	Charge		21	39.06
1679	Annoying painting tool		105	63.26
1756	Find The Determinant		174	35.19
1872	Making Book		808	28.98
2018	Clique Separation		71	40.44
2020	Painting Points		145	49.86
2122	Billboard		20	31.17
2126	Panel		26	16.72
2134	Colorful Cubes		2	22.22
2155	Jamcode 2006 (Easy)		125	45.19
2156	Jamcode 2006 (Hard)		22	51.11
2206	Labyrinth		3	23.08
2261	Program Analyser (tutorial)		16	18.40
2459	Magic Program		87	62.21
2494	Magic Program III		12	21.82
2533	Point Nesting		34	21.97
2627	The Longest Chain		82	60.26
2630	Autoarchive		8	33.33
2632	Max Power		97	43.41
2859	Help Conan 8 !! Hurry up !!		3	3.00
2907	Super Factor Sum		79	27.38
3131	Time to Graduate		11	35.14
3250	The Seven Percent Solution		200	18.32
3256	Rock Skipping		13	35.14
3313	Software Bugs		139	67.21	1 1
3318	Pascals Travels		41	34.04
3319	Speed Limit		454	61.16
3443	Netiquette		14	40.48
3917	Tree Query		14	39.02
3997	HARDWARE		78	39.72
4074	Compile Error		221	58.35	9 1
4171	DIOPHANTINE		180	40.76