Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
26500	MATAA		5	72.73
34372	Massimo Comune Divisore		4	50.00	1 1
14394	Mario meets princess Peach		11	25.76
20155	Maram and Queue		10	24.19
14527	Mandatory Attendance		6	66.67
7673	Making your own Calculator		13	15.69
7287	Making Palindrome		12	44.44
1872	Making Book		808	28.98
32470	Make Versions in Segment Tree	16	372	44.45	14 14
14931	Make It Simple		197	23.55
12100	Main Course		6	23.53
15970	Magical Names		55	75.29
12074	Magical Ladders		17	29.33	1 1
2494	Magic Program III		12	21.82
2459	Magic Program		86	61.63
10681	MAG		33	56.96
14337	Luhn Algorithm		30	42.17
8900	LUCKYNINE	2	420	32.08	1 1
8665	Lucky Sequence Again	3	697	52.74	6 17
8494	Lucky Numbers	1	273	60.68	17 17
3727	Lucky Number	3	776	65.87	1 1
4192	Lucky cities		17	32.88
29747	Lucky 7, Unlucky 13	3	78	43.43	6 6
5200	Lsu Football		27	85.22
21442	Lowest Common Ancestor	31	1898	36.53	13 12
12447	LOVER BOY	-1	62	38.03	1 1
24315	Los N primeros números impares		70	71.93
3081	Look and Say	1	274	56.22	1 17
23436	Look and Say	1	16	56.67	1 1
14089	Longest Smiley Face		25	60.00	1 1
4474	Longest Palindromic Substring	23	1229	21.51	22 20
3320	Longest Monotonically Nondecreasing Sequence	3	182	33.97	9 23
14217	Longest Maze Path		1	16.67
17641	Lights Out		9	43.59
8544	Lexicographical ordering	2	121	50.18	1 1
32108	Lexicographic Permutations	1	133	93.01
6656	Lexicographic Order 4		4	62.50
6655	Lexicographic Order 3		3	9.68
6654	Lexicographic Order 2	1	43	33.95	17 17
6653	Lexicographic Order 1		11	61.29
13389	Letter Count	1	647	54.55	1 1
29656	Left, right or center?		125	31.29
14120	LED Board		16	27.68
34567	Least prime divisor	5	227	23.73	1 1
16861	Learn to Add		65	72.64	1 1
19915	Leapyear		12	10.43
27068	Leaf	1	66	7.25	9 1
21648	LCM Sum(Hard)		27	22.73	17 34
34664	LCM Game		42	8.35	1 1
14037	Late Summer Battle		2	100.00

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