Sphere Online Judge (SPOJ)

list of tutorial problems

ID	NAME	QUALITY	USERS	ACC %	DIFFICULTY C I
37465	Do you know Factorials	1	7	17.05
41254	Clean Robot		7	50.00
4245	Place the Numbers I		6	3.35
9127	Graph basics concepts II		6	16.67
9438	Celebrity Split		6	17.31
12078	Picking Weights		6	16.67
12100	Main Course		6	23.53
13407	Einstein Ring		6	31.58
14527	Mandatory Attendance		6	66.67
14870	ALIENS AND COWS		6	50.00
15064	Bacteria(Easy)		6	66.67
15065	World Cup 2010(Easy)		6	62.50
18508	The Factorial Conundrum	2	6	34.09	34 26
18529	Tabs	1	6	52.94
18534	Time Tracking		6	60.00
19787	Mr Toothless and His Number Theory		6	10.00
21560	Dr. Sheldon cooper and Pseudo code		6	31.25
21564	Mission Ananta Jalil		6	100.00	17 17
21583	Print ♥		6	44.44
25185	Gold Leaf		6	28.00
25507	RETO 6 DOC		6	58.33
25586	Git	-1	6	72.73
25593	Pizza slices		6	33.33
25979	Busstop		6	87.50	1 1
27939	Amazing Maze		6	15.48
34398	Congruent primes	1	6	37.84	17 17
34425	Vertical strips pattern		6	81.82
35955	Sort For Fun		6	46.67
36436	Dãy số cơ bản	1	6	72.73	1 1
37166	Predicting the spread of viruses (EASY)	1	6	100.00	1 1
37314	Chuỗi đối xứng 3		6	38.10
41231	Python junior testing his keyboard		6	33.33
6703	SBE201 Palindromes		5	35.71
8146	Integer Concatenation		5	50.00
12077	Secret Code		5	14.29
13238	SAMPLE PROB		5	9.38
15977	Sums Decompositions		5	31.58
18035	Aya the new contestant	-2	5	28.57	17 34
18644	Reverse Precedence		5	88.89
19415	Numeral Abbreviation Notation	1	5	28.00
22131	KINGDOM		5	21.62
22306	Street Lighting		5	83.33
22430	JOGURT		5	31.58
22796	Food Selection		5	83.33
25187	Word Ladder		5	15.56
25228	6RETO 10 MARATON		5	71.43
25239	RETO 1 MARATÓN 11 (Calentamiento)		5	60.00
25310	TCX	-1	5	10.42
25573	Fold the cube	1	5	22.73	17 17
25592	Christmas shopping		5	55.56