Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
31283	Count The Players		49	25.87
8440	Verify N queens		50	17.73
15985	Sieve Of Erasthosthenes		50	81.94
22262	Run Length Encoding	1	50	34.48	1 9
9113	Digibomb!		51	66.04
15781	Coder Express Le!!		51	48.41
15968	Sorting	-1	51	45.41
25022	RETO MCM	1	51	78.21	1 1
26804	Pyramids	1	51	57.89
7431	Vikram & Betaal	1	52	68.13	1 1
9465	Spectrum of colours	-1	52	69.75	50 50
14982	simple calculation		52	28.53
15751	Kth Largest Candy Packet		52	88.51	34
18049	Robert Langdon & Sign Queue		52	71.59
22533	An Arithmetic Problem		52	29.95	1 1
13212	Seconds Apart	1	53	36.72	1 1
24317	Mayor de Tres		53	74.36
26779	The Universe Loves Minimum Steps !		53	44.19
4215	Inversions		54	55.98
12166	Reverse And Add		54	32.60
13422	THE JUMPING BALL		54	56.74
13436	DILEMMA		54	48.30
14908	Find The Number		54	53.42
15973	Even Odd Digit	1	54	31.17	17 17
18192	ASCII 1		54	54.07
24989	Todos Iguales		54	35.68
4522	Adding Base36 BigNumbers	1	55	34.33
14119	Factorial Sum	1	55	54.55
15428	Cartman Reverses Strings 200 pts		55	57.94	1 1
15970	Magical Names		55	73.08
18033	The Smurfs	-1	55	61.62	1 1
31288	Too Late		55	8.62	1 17
34170	CHT Practice	3	55	24.63	17 39
35773	Sum of Divisors	2	55	22.81	1 1
7413	Tile game		56	47.95
13216	Progression		56	32.15	1 1
14743	Derivation Sequence		56	50.38
18930	Number of digits		56	55.23
24911	Solo vocales en mayúsculas		56	43.23	1 1
11319	TARANIAMITKAUSHIK	-1	57	48.06
11382	Quadra vs PussyCat		57	50.53
14091	Mighty Powers		57	55.97
15444	Raise the Power 300 pts	-1	57	32.98	1 17
27490	Robber vs Miser		57	54.87
10490	Integer palindrome		58	61.11
36527	A not so good plan	-2	58	80.26	1 1
12112	SecondProblem		59	93.48	1 1
13391	Binary		59	40.27	1 1
13883	ZEROES IN RANGE	2	59	19.26	26 42
14124	S Number		59	49.63

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