Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	USERS	ACC %	DIFFICULTY C I
12289	Grid Travel	72	27.90
12372	In Debt	375	64.86	1 1
12395	Maximizing the equation	84	40.47
12410	No more Johnny	62	35.89
12454	Permutation	52	47.86
12455	Order	22	66.25
12456	NUMBER SERIES	81	44.09
12458	Unique strings	153	90.84	1 1
12465	Shared Letters	96	68.83
12466	Closest Points	82	56.90	17 1
12509	STRING PROBLEM	43	43.12
12510	JUMPING DORA	90	36.31
12523	Nuts Frenzy	94	16.33	1 17
12607	Missing one	27	91.53
12648	The Last Exam	15	61.54
12793	The power of two	110	51.35
12801	Browsing History	51	40.88
12823	Print Big Binary Numbers	19	58.23
12910	Addicted Numbers	148	29.57
13085	Game	160	68.70
13115	Julius Caesar Cipher	24	31.82
13153	Fast Division	119	49.57
13154	Very Fast Division	20	38.89	17
13200	Sum It Up	220	26.06	1 1
13201	Multiple of 3	377	39.21	1 1
13202	Great Grading Scheme	164	26.14	1 1
13203	Sort them All	149	39.86	1 1
13204	Easy as Cake	279	58.77	1 1
13206	Multiples	152	45.60	1 1
13209	Divisors	145	45.69	1 1
13210	Fun Triangle	117	32.55	1 1
13215	Kings on an Infinite Chessboard	68	34.97	1 1
13216	Progression	60	32.79	1 1
13385	Balanced Bracket Expression	23	20.42
13386	Rotations	15	28.57
13390	Reverse Words	122	31.22	1 1
13391	Binary	63	39.81	1 1
13393	Dragons	50	43.27	1 1
13394	Big Dragons	31	48.06	1 1
13395	More Dragons	45	56.16	1 1
13396	Find Them All	33	42.74	1 1
13397	How Many Primes	140	37.86	1 1
13401	Sherlock	21	53.06
13407	Einstein Ring	9	43.48
13421	RELATIVE PRIMES	37	74.60
13422	THE JUMPING BALL	59	58.22
13436	DILEMMA	58	49.67
13510	Just multiply !	10	11.00
13625	CAPS ON	27	23.44
13650	Adel Challenge	54	44.62