Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12111	FirstProblem		114	59.40
12112	SecondProblem		68	94.23	1 1
12184	Help the statistics department	2	39	39.74	9 17
12208	The Chain Reaction		20	36.92
12271	Speed test - Pyramid version		31	81.43
12272	Speed test - Cube version		33	70.67
12275	Meeting and Dating		153	35.19
12276	Subset and upset	1	69	54.20	1 34
12282	Word or number (easiest 2)	-1	223	67.49
12289	Grid Travel		72	27.90
12348	Sum of Subsets	3	300	35.09	12 6
12372	In Debt		374	64.89	1 1
12395	Maximizing the equation		84	40.47
12396	Johnny divides by 2	3	210	40.37	1 1
12410	No more Johnny		62	35.89
12412	Johnny Learns Modular exponentiation	4	739	23.09	6 12
12447	LOVER BOY	-1	67	43.81	1 1
12454	Permutation		51	47.83
12455	Order		20	66.67
12456	NUMBER SERIES		81	44.09
12457	HELP NERUBAN	1	467	28.93	1 1
12458	Unique strings		153	90.84	1 1
12460	Eat a Good Meal	-1	10	62.96	1 1
12465	Shared Letters		95	68.63
12466	Closest Points		82	58.10	17 1
12473	INVITATION FOR TECHOFES	1	114	32.77	17 9
12509	STRING PROBLEM		43	42.99
12510	JUMPING DORA		90	36.31
12511	CUBE ROOT	1	48	11.51	34 17
12523	Nuts Frenzy		94	16.33	1 17
12540	It is Super Effective	1	38	39.85	1 1
12564	Innovative Combination	2	115	54.49	9 9
12607	Missing one		25	90.00
12608	Switch	1	33	81.82
12648	The Last Exam		15	51.61
12650	Even and Odd	1	66	35.04
12753	Fan Switches	1	236	67.46	1 1
12793	The power of two		109	51.16
12801	Browsing History		51	40.88
12823	Print Big Binary Numbers		19	58.23
12910	Addicted Numbers		147	29.44
13082	BINARY CHALLENGE	3	287	32.24	17 26
13085	Game		159	68.57
13088	Free Palestine	-1	137	29.66
13089	Tetravex	1	140	52.86	17 17
13153	Fast Division		118	49.57
13154	Very Fast Division		19	38.69	17
13200	Sum It Up		219	26.02	1 1
13201	Multiple of 3		377	39.21	1 1
13202	Great Grading Scheme		163	26.09	1 1

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