Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
13382	Kindergarten Painting Competition		36	38.10
14819	Permutation Generator		27	38.10
15576	Aesthetic Text		15	38.10
26348	K NUMBERS	11	279	38.09	9 9
6556	N DIV PHI_N	14	736	38.09	5 26
15637	Mr Youngs Picture Permutations	1	513	38.08	17 17
30116	Can you draw it or not?	16	194	38.07	5 9
10568	Graph Cut	4	105	38.07	9 9
8421	Fun With Inequalities		140	38.05	17 17
142	Johnny and the Glue		105	38.04	17 17
10538	Derp		55	38.04
16138	Deconnecting		57	38.04	1 1
21524	Pattern Find	79	4643	38.03	10 13
19143	TRISQRS		169	38.02	28 34
13829	Tjandra 19th birthday present (HARD)	2	36	38.02	39 23
7408	Camelot	2	62	38.01	17 17
14543	Range Sum	26	978	38.01	11 12
25458	Boxes	4	96	38.00	38 38
3381	Highways	77	4378	38.00	10 9
8434	Kolica	2	61	38.00	34 17
3979	Whirligig number	8	1026	37.97	10 15
16758	Divisible by 6 and 9	-1	122	37.97	21 13
7102	Doing The Word Wrap	1	171	37.95
27102	Swap Space	1	82	37.93	1 17
11321	G-One Sort	5	775	37.92	13 17
35956	Square Free Number	8	66	37.92	20 17
12912	Saving BOB	3	97	37.91	14 17
15038	Yell Classico	3	211	37.90	17 1
15736	Breaking String	18	719	37.89	17 28
8333	Place-name game		69	37.88
48	Glass Beads	29	3406	37.88	15 18
2047	Stone Removing Game	-1	131	37.87
15636	Histology Assistant		8	37.84	17 17
21352	Avantgarde and Bicycle		22	37.84
19996	Moon Safari (medium)	4	74	37.83	30 34
77	New bricks disorder	1	285	37.82	17 17
13002	For Loops Challenge	2	278	37.82	34 17
15569	Antisymmetry	2	348	37.80	17 34
12413	Toward Infinity		20	37.80
10071	Working at the Restaurant		32	37.78
14883	Box Factory		15	37.78
15498	Kawigi quote	1	24	37.78	34 34
8139	Chairs	8	549	37.76	12 20
13941	The AMSCO cipher		246	37.76	17 17
13047	Saruman of Many Colours	2	400	37.75	9 17
12260	Devlali Numbers	13	719	37.75	20 14
3894	Bouncing Balls		27	37.74
13093	Mosque	1	46	37.74	6 12
3882	Cijevi	5	259	37.70	30 14
13545	Room Change	1	140	37.70	17 17

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