Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
36981	Đào vàng remix		19	27.37
11366	Zoom Operation		11	42.05
13883	ZEROES IN RANGE	2	59	19.26	26 42
8395	ZBROJ		390	60.80
4830	Z meet	-1	151	76.09
4865	Yupana inca		25	74.42
25184	You Win		13	32.50
21097	XYZ-Strings		12	23.61
15440	XÓA SỐ		20	49.32
29449	Xavier’s Fight		18	35.59
34987	Worm world		10	45.83
35304	World of Programs		1	1.33
23133	World Cup 2015		4	1.17	17 17
15065	World Cup 2010(Easy)		6	62.50
25587	Word to number		4	60.00
12282	Word or number (easiest 2)	-1	217	66.92
25187	Word Ladder		5	15.56
14040	Winter Shopping		19	89.36
37631	Wifi Password		13	51.61
26781	Why Always Recursion	20	1063	44.47	2 7
11114	Who Won the Match	-1	33	70.21
13276	Who is Mafia	1	213	56.72	21 21
25275	Welcome to CSAU		8	66.67
8268	Welcome To Code - Hard		8	45.00
8267	Welcome To Code - Easy		18	59.52
7893	Weekdays		23	52.54
27255	Water Bill Company	1	21	24.21	12 23
9605	Warmup Problem A		16	27.27
21646	War Message	1	13	38.46	1 1
8147	Waiting Queue	1	93	29.83	1 17
8749	Waiting for Easter		82	33.44
36961	Vùng bao lớn nhất		19	16.11
11333	Vowels	1	1170	65.20	1 1
14335	Vowels		36	31.06
20164	Vowels		28	65.45
18533	Vowel Density		9	41.67
21056	Vowel again		15	73.91
7431	Vikram & Betaal	1	52	68.48	1 1
8439	VijayAndAjith		80	69.29
22122	Victory Day Party		12	41.18
22124	Victory Day Dictionary		10	40.48	1 1
14088	Very Tasty Meals		21	26.19
13154	Very Fast Division		17	48.32	17
34425	Vertical strips pattern		6	81.82
8440	Verify N queens		50	17.73
21675	VEGETABLE SHOPKEEPER 1		19	63.64
25143	Varying Focus	1	16	35.42	17 17
25177	Variations	2	71	68.07	1 1
25188	Vampire Numbers	1	10	44.83	1 1
26142	Vampire and his Holy Numbers	1	32	41.51	17 17