Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
3871	GCD Extreme	79	2694	29.52	19 26
3872	Party At School		49	23.80
3876	Tablica	1	205	59.13
3877	Cvjetici	18	977	48.55	12 21
3878	Rectangles Perimeter	58	2690	49.81	12 14
3881	Majstor	1	731	53.87	4 4
3882	Cijevi	5	258	37.67	30 14
3883	LATGACH3	55	3163	56.56	10 20
3884	When (You Believe)		23	8.98
3885	Coins Game	92	5255	45.73	10 13
3889	Closest Number	1	192	30.08	34 26
3890	Rectangles Counting		174	33.39
3893	Space settlement		64	38.42
3894	Bouncing Balls		27	37.74
3895	Matrix Game		25	31.71
3896	Maximal Independent Set	2	58	25.20	34 42
3897	Convex Polygons	2	119	30.29	17 34
3898	Even Palindrome	-1	247	10.24
3899	Finding Fractions	1	166	29.25	17 34
3900	MinCut Query		77	28.78
3901	Black and White Nim		55	44.50
3902	Fight with functions	3	20	6.55	42 34
3909	CALCULATE POW(2004,X) MOD 29	2	272	56.49	1 17
3912	Color a tree	1	215	26.93	17 34
3915	Star Polygon or Not	1	38	55.06	17 17
3926	Manhattan Wire		81	14.32
3927	Polygon on the Grid		22	36.62
3928	Counting Digits	7	1162	44.89	22 26
3929	Different Digits		71	21.97
3930	Group Partition	1	69	30.00	34 34
3931	Maximum Triangle Area	2	281	29.22	5 28
3932	Point Connection Game in a Circle	3	749	35.37	13 21
3933	Minimum Permutation	6	183	38.20	12 17
3934	Recaman’s Sequence	25	3529	53.85	9 6
3935	SHIFT Operator on Matrix		188	42.17
3936	Repair City Hall	4	241	50.00	5 1
3937	Wooden Sticks	9	675	36.81	23 28
3940	Sum of Primes	3	228	62.94	9 9
3941	Kth Shortest Path		26	29.38
3942	Cleaning Robot		30	66.15
3943	Nested Dolls	30	1223	23.63	20 27
3946	K-th Number	238	5309	34.69	25 27
3953	Paid Roads	8	250	26.75	19 26
3961	Journey with Pigs		130	42.94
3962	ELEVATOR II	2	99	42.96	9 26
3964	Investment Money	15	617	25.57	16 17
3965	Minimax Triangulation		58	34.60
3969	M&M Game	12	1296	42.17	4 17
3972	Stargates		45	13.29
3973	0 0 Pairs	4	805	27.34	15 15

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