Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12523	Nuts Frenzy		89	16.38	1 17
18643	Odd		16	50.00
25210	Odd Count		23	75.61
19289	Ohani And Unsolvable Math	1	29	39.29	1 17
5228	Old problem		47	29.69
14749	Omar’s Training I		27	44.05
14131	Omitting Redundancy	2	11	23.53	17 34
32047	Optimal BST		132	92.27
24950	Orden Secuencia		10	52.63
12455	Order		15	66.00
9819	Out of place	1	137	64.52	17 17
10208	Overestimate		132	38.18
8755	Overlapping Squares	2	118	34.76	17 1
14336	Packing Boxes	-1	11	24.56
2020	Painting Points		145	49.86
26556	Pair Divisible	1	27	20.81	34 34
14867	PAIRS	1	49	58.28	17 17
13934	Palindrome Pair		12	20.73
21099	Palindrome Query	2	27	48.18	9 26
25191	Palindrometer		15	32.38
11121	Palindromic Cricketer		21	67.44
23937	Panda and sets		1	3.12
2126	Panel		26	16.72
26316	PARESOI		14	26.15	1 1
40750	Parity Issue		1	10.00
9514	Parsing URL	1	23	34.41
28741	Partial Primes	1	8	54.84
11961	Party trouble		68	29.19
16065	Pascal Triangle		20	93.33
35989	Pascal Triangle		7	27.66
3318	Pascals Travels		41	34.04
37644	Password Cracking		30	29.06
11731	PATENTES		18	48.72
8931	PATHS( no source code limit)	1	46	53.89
4304	Pawn		13	43.75
7910	PECOS STRING		22	47.17
28737	Pen Pine Apple - Apple Pen		16	66.67	1 1
8224	Perfect Composites		40	19.47
11387	Perfect Cover		83	32.25	1 1
11976	Permutation		23	33.91
12454	Permutation		45	44.86
19277	Permutation Cycle Decomposition		21	63.64
3252	Persistent Bits	1	28	57.14	17 17
15247	PETERHOUSE	1	31	50.00	1 1
25274	Photos in a Frame		24	21.80
11266	Pick the candies	3	510	34.43	17 17
10365	PICK UP DROP ESCAPE		385	28.14	1 12
12078	Picking Weights		6	16.67
12081	Picture Perfect	1	18	29.17
1393	Ping Pong Probability	2	239	52.04	1 17