Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
19289	Ohani And Unsolvable Math	1	29	39.29	1 17
23428	Decrypt the Message	1	29	50.00	1 1
27499	Budget for Flowers and Books	-1	29	27.27
32073	The Permutation Game	4	29	67.65	17 23
11203	Auris Love		30	17.49
11791	Integer Factorization With A Twist		30	24.89
13681	Matrix City		30	58.21
14115	Eating Puzzle	-1	30	24.00
14337	Luhn Algorithm		30	42.17
15979	Encrypt the String		30	94.00
25217	NOTA INFORMATICA		30	56.60
25230	5RETO 10 MARATON (Calentamiento)	-1	30	64.00
29748	Robin Hood		30	38.14	1 1
37644	Password Cracking		30	29.06
9361	The Circumference of the Circle	1	31	44.71	34 1
9980	Door Enclosure		31	79.55
15247	PETERHOUSE	1	31	50.00	1 1
15815	Exercise		31	31.90
17246	Come on, it is just a power of two!		31	27.87
19407	Fibonacci extraction Sum		31	59.51
22444	Chemical X		31	90.20
23229	Alice Game		31	23.60
24963	Secuencia ordenada e impares	-1	31	50.37
34400	A recurrence relation	1	31	64.40	17 17
11109	Race Results		32	19.66
18723	Largest Multiple		32	31.12
23545	THINK DIFFERENT		32	47.31
24659	KNIGHT MOVES		32	59.38
24893	Mayores que el primero y multiplos de 5		32	62.24	1 1
25226	5RETO 10 MARATON		32	75.47	1
25754	Best Two		32	9.88	1 1
26142	Vampire and his Holy Numbers	1	32	41.51	17 17
35719	Query on an array I	-1	32	24.04	9 9
6521	SuperPower		33	50.83
7856	Tower Game (Easy)		33	39.10
10681	MAG		33	56.96
11114	Who Won the Match	-1	33	70.21
15301	Number Game	1	33	51.90	17 17
16107	MIKE AND RACHAEL		33	40.22
16136	Help Santa	-1	33	45.45
16694	Goodness of Numbers	1	33	37.76
18039	Atito’s family		33	61.97
18157	Double Primes	1	33	25.45	17 17
20160	Amr and Math		33	63.33	1
20974	The Patriotic Indian	1	33	31.85	1 1
27043	Subset Pattern		33	11.98	1 1
28178	Real Give Away	1	33	51.47	1 1
2533	Point Nesting		34	21.97
12071	Point Blank		34	33.91
14090	Moving the dog around		34	48.35

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