Sphere Online Judge (SPOJ)

list of tutorial problems (unsolved)

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12564	Innovative Combination	2	115	54.49	9 9
12540	It is Super Effective	1	38	39.85	1 1
12523	Nuts Frenzy		94	16.33	1 17
12511	CUBE ROOT	1	49	11.59	34 17
12510	JUMPING DORA		90	36.31
12509	STRING PROBLEM		43	43.12
12473	INVITATION FOR TECHOFES	1	114	32.69	17 9
12466	Closest Points		82	56.90	17 1
12465	Shared Letters		96	68.83
12460	Eat a Good Meal	-1	10	62.96	1 1
12458	Unique strings		153	90.84	1 1
12457	HELP NERUBAN	1	469	28.98	1 1
12456	NUMBER SERIES		81	44.09
12455	Order		22	66.25
12454	Permutation		52	47.86
12447	LOVER BOY	-1	67	43.81	1 1
12412	Johnny Learns Modular exponentiation	4	758	23.12	6 12
12410	No more Johnny		62	35.89
12396	Johnny divides by 2	3	210	40.37	1 1
12395	Maximizing the equation		84	40.47
12372	In Debt		375	64.86	1 1
12348	Sum of Subsets	3	300	35.09	12 6
12289	Grid Travel		72	27.90
12282	Word or number (easiest 2)	-1	222	67.41
12276	Subset and upset	1	69	54.20	1 34
12275	Meeting and Dating		153	35.19
12272	Speed test - Cube version		34	71.05
12271	Speed test - Pyramid version		32	81.69
12239	Natalia Got A Problem		24	40.32
12208	The Chain Reaction		20	36.92
12184	Help the statistics department	2	41	40.91	9 17
12169	General Number Series		63	30.30
12168	APGP Tutorial		29	22.22
12167	Fibonacci starters		33	40.91
12166	Reverse And Add		60	34.39
12165	Encrypted String		13	13.83
12112	SecondProblem		69	94.29	1 1
12111	FirstProblem		114	59.40
12101	Entrée		149	50.23
12100	Main Course		8	16.67
12092	Dessert		120	45.83
12083	Appetizer		125	51.05
12081	Picture Perfect	1	21	36.71
12078	Picking Weights		10	20.29
12077	Secret Code		8	19.23
12075	Encryption		9	31.82
12074	Magical Ladders		20	28.92	1 1
12073	Unique Numbers	2	328	32.08	1 1
12072	Playing With Bits		177	54.42
12071	Point Blank		39	35.29

list of tutorial problems (unsolved)

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