Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12540	It is Super Effective	1	37	53.00	1 1
12523	Nuts Frenzy		89	16.38	1 17
12511	CUBE ROOT	1	49	12.26	34 17
12510	JUMPING DORA		88	35.76
12509	STRING PROBLEM		40	44.55
12473	INVITATION FOR TECHOFES	1	109	32.35	17 9
12466	Closest Points		82	58.10	17 1
12465	Shared Letters		94	69.62
12460	Eat a Good Meal	-1	9	59.09	1 1
12458	Unique strings		148	90.69	1 1
12457	HELP NERUBAN	1	444	28.50	1 1
12456	NUMBER SERIES		77	43.75
12455	Order		15	66.00
12454	Permutation		45	44.86
12447	LOVER BOY	-1	62	38.03	1 1
12412	Johnny Learns Modular exponentiation	4	689	22.90	6 12
12410	No more Johnny		61	37.56
12396	Johnny divides by 2	2	205	39.81	1 1
12395	Maximizing the equation		79	39.84
12372	In Debt		369	64.63	1 1
12348	Sum of Subsets	3	298	35.04	12 6
12289	Grid Travel		68	27.24
12282	Word or number (easiest 2)	-1	217	66.92
12276	Subset and upset	1	63	54.33	1 34
12275	Meeting and Dating		147	34.00
12272	Speed test - Cube version		29	71.23
12271	Speed test - Pyramid version		28	82.81
12239	Natalia Got A Problem		24	40.98
12208	The Chain Reaction		16	40.43
12184	Help the statistics department	2	38	42.75	9 17
12169	General Number Series		61	29.96
12168	APGP Tutorial		23	19.57
12167	Fibonacci starters		28	39.56
12166	Reverse And Add		54	33.33
12165	Encrypted String		12	21.13
12112	SecondProblem		60	93.81	1 1
12111	FirstProblem		110	58.55
12101	Entrée		144	50.11
12100	Main Course		6	23.53
12092	Dessert		113	44.52
12083	Appetizer		122	51.45
12081	Picture Perfect	1	18	29.17
12078	Picking Weights		6	16.67
12077	Secret Code		5	14.29
12075	Encryption		7	21.21
12074	Magical Ladders		17	29.33	1 1
12073	Unique Numbers	2	299	31.07	1 1
12072	Playing With Bits		172	54.99
12071	Point Blank		34	33.91
11999	Catalan Powered	1	18	19.29	1 17

list of tutorial problems

filter by

Most popular tags