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time:
2025-06-15
01 : 31 : 59
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WHITESPACE
list of classical problems
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ID
NAME
CODE
USERS
ACC %
1
Life, the Universe, and Everything
TEST
221804
33.16
2
Prime Generator
PRIME1
82347
16.25
5
The Next Palindrome
PALIN
20520
10.77
12
The Game of Master-Mind
MMIND
782
44.47
13
Hotline
HOTLINE
212
16.27
14
I-Keyboard
IKEYB
1301
42.79
15
The Shortest Path
SHPATH
7657
24.05
24
Small factorials
FCTRL2
51108
29.61
31
Fast Multiplication
MUL
9003
20.74
32
A Needle in the Haystack
NHAY
11279
38.34
34
Run Away
RUNAWAY
528
22.23
35
Equipment Box
EQBOX
1325
14.48
36
Secret Code
CODE1
550
35.51
37
The Proper Key
PROPKEY
138
13.91
38
Labyrinth
LABYR1
5342
25.79
39
Piggy-Bank
PIGBANK
8215
35.48
40
Lifting the Stone
STONE
1639
23.72
41
Play on Words
WORDS1
3295
19.56
42
Adding Reversed Numbers
ADDREV
86404
48.67
43
Copying Books
BOOKS1
2822
25.73
44
Substitution Cipher
SCYPHER
332
13.61
47
Skyscraper Floors
SCRAPER
291
12.64
49
Hares and Foxes
HAREFOX
110
7.56
50
Invitation Cards
INCARDS
1769
43.02
51
Fake tournament
TOUR
1809
26.95
55
Jasiek
JASIEK
472
28.17
56
Dyzio
DYZIO
1220
31.42
57
Supernumbers in a permutation
SUPPER
1098
32.86
58
Crime at Piccadily Circus
PICAD
648
14.00
60
The Gordian Dance
DANCE
236
40.21
63
Square Brackets
SQRBR
3874
56.68
64
Permutations
PERMUT1
4370
52.08
65
Ball
BALL1
155
34.58
66
Cross-country
CRSCNTRY
4102
64.49
67
Cutting out
CUTOUT
300
40.71
68
Expression
EXPR1
166
28.71
69
Moulds
MOULDS
133
34.66
70
Relations
RELATS1
253
28.68
83
Bundling
BUNDLE
56
34.81
84
Shortcut
SHORTCUT
235
31.43
86
November Rain
RAIN1
300
17.57
87
Football
FOOTBALL
66
20.00
89
Hang or not to hang
HANGLET
62
15.55
90
Minimizing maximizer
MINIMAX
386
24.79
91
Two squares or not two squares
TWOSQRS
6084
24.67
92
Cutting off Squares
CUTSQRS
261
41.00
96
Shopping
SHOP
3089
44.21
97
Party Schedule
PARTY
8918
36.21
98
Dance Floor
DFLOOR
722
40.21
99
Bus
BUS
187
22.18
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