Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
25719	Cuantas veces en arreglo	-1	28	54.90
27490	Robber vs Miser		57	54.87
28741	Partial Primes	1	8	54.84
5779	Interleaved Periodic String		42	54.76
22795	Consecutive Numbers		21	54.65
13389	Letter Count	1	611	54.65	1 1
8790	Find summits		11	54.55
14119	Factorial Sum	1	55	54.55
15760	Geeky World		4	54.55
21747	Problems 2: DIV, MOD and IF	-2	37	54.55	1 1
34416	Euler Totient of factorized integer	2	9	54.55	17 34
12564	Innovative Combination	2	108	54.43	9 9
13089	Tetravex	1	133	54.40	17 17
12276	Subset and upset	1	63	54.33	1 34
10559	PRIMES20		38	54.24
15640	Butters and Magical Numbers 375 Points	1	13	54.17
28639	Amazing Fulia And His Powers		21	54.17
16108	BOSSACT	2	81	54.12
8294	Largest Square in a Circle		143	54.11
16249	Takeshis Maze		43	54.08
5241	Alchemy		446	54.04
14670	The Revelations	1	69	54.01	1 17
4301	Tables	14	6591	54.00	2 3
23152	Alien Invasion	-1	23	54.00	17 17
7411	Reward for the hard work		79	53.93
8931	PATHS( no source code limit)	1	46	53.89
13153	Fast Division		116	53.88
19219	Naval and exam		11	53.85
18192	ASCII 1		52	53.69
25757	Ecstatic Super Mario		20	53.66
11507	SPIRAL RUN	2	363	53.59	1 12
14908	Find The Number		54	53.42
15490	After Hard Party		209	53.42
11226	Hello World!	-3	1445	53.37	9 9
28641	Finding true twins	4	66	53.31	21 26
8847	Google is Feeling Lucky		1717	53.30	1 1
13662	H Number		146	53.29
8437	MODULUS	1	421	53.23
11318	NEMO		115	53.19
8412	Greedy Government		166	53.16
10489	The GamE		69	53.09
10486	Reverse number		247	53.08
12540	It is Super Effective	1	37	53.00	1 1
18529	Tabs	1	6	52.94
27181	Guess the birthday of author or the co-author	1	11	52.94	34 17
25946	Defective Products		119	52.83	6 4
34010	Friendship	5	180	52.76	1 1
8665	Lucky Sequence Again	3	697	52.74	6 17
24910	Generador de direcciones de correo electrónico		28	52.73
14933	GEEK In The Army		46	52.71

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