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WHITESPACE
list of classical problems
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ID
NAME
CODE
USERS
ACC %
7809
Cow Photographs
COWPIC
169
35.69
7826
Tree Isomorphism
TREEISO
555
22.99
7851
Stacks of Zippy
JZPSTA
17
16.80
7857
Tower Game (Hard)
ADV04A1
59
15.07
7859
Upper Right King (Hard)
ADV04B1
166
36.87
7860
Deal or No Deal
ADV04C
9
42.55
7861
UFO
ADV04D
34
28.74
7862
Prisoner of Benda
ADV04E
23
34.25
7864
Four Chips (Hard)
ADV04F1
139
29.33
7866
Regular expressions (Hard)
ADV04G1
109
25.69
7868
Join
ADV04H
17
47.56
7870
Invisible point
ADV04J
1659
42.87
7874
Calculator
ADV04K
25
22.30
7875
Miles and kilometers
ADV04L
603
46.82
7881
Ljutnja
C1LJUTNJ
637
24.24
7882
Tabovi
C1TABOVI
331
49.62
7884
Crni
C2CRNI
55
54.55
7886
Boards (Hard)
ADV04I1
35
34.59
7897
Skyline
SKYLINE
907
32.31
7934
Operating System Problems (Task Scheduling)
OSPROB1
138
56.50
7946
Check Ramsey
HS10RMSY
8
39.13
7947
Almost square factorisation
HS10SQFT
120
51.97
7960
Multiplicative Palindrome
MULPAL
30
28.49
7969
A Knights’ Tale
ACPC10G
76
23.33
7970
Jumping Beans
ACPC10H
58
26.80
7971
The Cyber Traveling Salesman
ACPC10I
33
35.31
7972
World of cubes
ACPC10F
33
16.00
7973
Sometimes, a penalty is good!
ACPC10E
1201
29.49
7974
What’s Next
ACPC10A
43602
34.74
7975
Tri graphs
ACPC10D
4843
29.10
7976
Sum the Square
ACPC10B
555
26.17
8001
Fibonacci Sum
FIBOSUM
6869
27.75
8002
Horrible Queries
HORRIBLE
10940
29.72
8004
Tree Topology
TTOP
83
45.33
8055
Playground
AMR10A
277
25.78
8056
Regex Edit Distance
AMR10B
32
40.62
8057
Square Free Factorization
AMR10C
1403
41.39
8058
Soccer Teams
AMR10D
141
25.30
8059
Stocks Prediction
AMR10E
87
32.71
8061
Christmas Play
AMR10G
7754
48.28
8062
Shopping Rush
AMR10H
73
63.26
8063
Dividing Stones
AMR10I
165
26.17
8064
Mixing Chemicals
AMR10J
166
23.22
8073
The area of the union of circles
CIRU
454
20.61
8074
God of Number Theory
NUMG
29
36.45
8075
Sequence
SEQN
57
27.66
8093
Sevenk Love Oimaster
JZPGYZ
519
23.48
8097
Islands
IOIISL08
70
46.34
8100
Shifting Lights
SHLIGHTS
228
31.17
8104
Friendly Knights
KFRIENDS
147
45.26
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