Sphere Online Judge (SPOJ)

list of classical problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
4182	Candy (Again)	2	225	18.51	34 34
4306	The way to Bytemountain	1	29	41.25	34 34
4456	Jumbo Airlines	2	74	39.38	34 34
4487	Can you answer these queries VI	25	1209	22.71	34 28
4593	Arithmetic sequence	1	64	9.52	34 17
4657	Gas Wars		139	35.32	34 17
4669	Cross Mountain Climb Extreme	1	32	22.91	34 50
4941	Integer Factorization (20 digits)	8	549	55.88	34 30
5120	Minimal Possible String	3	55	5.08	34 28
5147	Fire-Control System		30	18.60	34 17
5469	Houses		42	26.72	34 26
5511	Heavy Sequences		79	18.00	34 34
5703	Primes of Lambda	1	22	29.14	34 34
5830	Alternating Permutations	1	54	39.39	34 34
5902	Tri	1	78	20.64	34 50
5975	Travelling Knight	2	50	33.40	34 34
6044	Minimum Diameter Circle	1	432	27.29	34 42
6169	Standing Sequence	2	118	28.49	34 39
6578	Segment Tree	1	53	10.09	34 34
6678	Load Testing		200	59.73	34 34
6717	Two Paths	8	212	17.29	34 36
6824	Flag	1	79	26.48	34 34
6917	Catch Sheep	2	31	22.07	34 34
6926	Tree game	1	47	8.86	34 34
7152	Boundary 2003	1	18	14.87	34 1
7155	Test	10	362	18.26	34 27
7579	Power Calculus		246	44.72	34 17
7623	Divisors VI	2	23	14.84	34 34
7760	Kids’ Wishes	1	92	31.74	34 1
7762	Electric Needs	1	23	41.30	34 17
7851	Stacks of Zippy	1	18	17.37	34 34
7857	Tower Game (Hard)		59	15.07	34 34
7868	Join	1	18	50.63	34 17
7881	Ljutnja	3	636	24.22	34 21
7891	Fibonacci Sequence		97	30.21	34 34
7971	The Cyber Traveling Salesman	1	33	36.20	34 17
8056	Regex Edit Distance	1	32	43.16	34 34
8119	CIRU2	1	172	36.34	34 34
8324	Military patrol	1	54	30.20	34 50
8335	Counting the teams	1	23	45.61	34 50
8398	Quadratic Equation	1	600	28.88	34 17
8434	Kolica	2	61	37.37	34 17
8462	Barn Allocation	1	127	51.77	34 34
8491	Messy Phone List	1	50	19.67	34 17
8578	Reverse the Sequence	1	86	42.31	34 50
8625	Just The Simple Fax	1	76	41.10	34 17
8747	Substrings II	6	144	10.47	34 30
8839	Longest Common Difference Subsequence	3	72	24.81	34 39
8845	Entertainment	1	48	38.10	34
8886	Guess number!		17	5.03	34 34

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