Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
22797	Automated Dispatch		10	92.86
22803	Number Of ways		10	37.68
23543	Networking lover Poltu!	1	10	8.48
24949	Menores al anterior		10	66.67
24950	Orden Secuencia		10	52.63
25188	Vampire Numbers	1	10	44.83	1 1
25233	3RETO 11 MARATÓN	-1	10	20.00
25246	RETO 4 MARATON 10		10	23.73
25590	Sum of fractions	1	10	57.89
34987	Worm world		10	45.83
37312	Chuỗi đối xứng 1		10	47.17	1 1
37313	Chuỗi đối xứng 2		10	42.86
37642	Biometrics Authentication		10	61.54
41442	Sleepwork		10	61.90
8650	Grid painting	1	9	25.71	34 34
9815	Measuring the odds		9	40.00
10493	Calculator for Arrays		9	18.75
12460	Eat a Good Meal	-1	9	59.09	1 1
14199	Prime Summation		9	56.52
15097	Changing formation		9	60.00
15530	Alien City		9	19.23
15645	Kyle Types Text 425 Points		9	48.00
16510	Baza		9	100.00
17641	Lights Out		9	43.59
18533	Vowel Density		9	58.82
22309	How to multiply		9	41.94
22446	Insert and Search		9	44.44
24737	Fibo and non fibo(Hard)	1	9	14.21	1 1
25057	Threebonacci		9	15.94
25208	Geometry (I)		9	50.00
25588	Quad areas		9	16.67
26218	Solution for a Travelling Salesperson Problem		9	62.50
26775	Compute The Computation		9	41.10
26786	Bacteria in The Pond	1	9	26.56	17 17
28741	Partial Primes	1	9	56.25
30784	Ada and Pear		9	10.64
34402	Break a cryptosystem		9	81.25
34418	Number of divisors of factorial	1	9	62.96
37643	Attack System		9	18.18
41030	FIFA SOCCER		9	31.25	1 1
2630	Autoarchive		8	33.33
7863	Four Chips (Easy)		8	18.00
8268	Welcome To Code - Hard		8	45.00
9128	Graph basics concepts II		8	22.00
9501	Best balanced diet		8	21.28
12078	Picking Weights		8	18.97
12648	The Last Exam		8	42.86
13510	Just multiply !		8	9.00
13690	Names		8	66.67
14945	Summation of Multiples (hard)		8	13.92