Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
12165	Encrypted String		13	13.83
13690	Names		13	71.43
14394	Mario meets princess Peach		13	41.67
14527	Mandatory Attendance		13	82.61
14945	Summation of Multiples (hard)		13	18.82
15302	Color The Big Wall		13	31.11
16551	Backwards alphabetized epigrams		13	53.57
17641	Lights Out		13	48.78
18034	Arab Cleaning Masters		13	22.73
18037	Mohamed and Ali Baba		13	57.69	1 1
19218	Dipu and Maths	1	13	45.71	17 17
19915	Leapyear		13	10.98
19956	Connecting Networks		13	20.24
20152	Shokry and Strings		13	36.17
21563	Annie’s 18th Birthday		13	66.67
22061	DAY AND DATE		13	32.69
22124	Victory Day Dictionary		13	22.62	1 1
22220	Julius Princes Test		13	58.62
24952	Cantidad de dígitos para 3 numeros		13	100.00
25057	Threebonacci		13	18.75
25184	You Win		13	30.23
25188	Vampire Numbers	1	13	50.00	1 1
25208	Geometry (I)		13	51.43
25233	3RETO 11 MARATÓN	-1	13	22.81
25979	Busstop		13	92.86	1 1
26092	Search for a pattern in a text		13	17.05	1 1
34416	Euler Totient of factorized integer	2	13	53.66	17 34
37642	Biometrics Authentication		13	63.33
2494	Magic Program III		12	21.82
8458	ALIGNSUBTRACT		12	18.46
10493	Calculator for Arrays		12	21.52
11040	UJ Test 1		12	9.33
14221	Subwords	1	12	27.54
15097	Changing formation		12	63.64
15530	Alien City		12	24.14
16555	Name Scraping		12	55.56
18505	Special Blessing to Players		12	52.94
18534	Time Tracking		12	52.17
20766	nikkiNXN		12	30.00
21569	Find out Defect Ball		12	45.95
22446	Insert and Search		12	45.71
22792	Project Management		12	64.29
22803	Number Of ways		12	36.84
23891	Año Bisiesto		12	14.29
25186	Stained Carpet		12	27.78
25590	Sum of fractions	1	12	61.90
25714	Treat! Treat!		12	23.44
26776	Equation Equals Hazards	1	12	43.33	1 17
27181	Guess the birthday of author or the co-author	1	12	29.55	34 17
34415	Check factorization	1	12	64.52

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