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2024-12-27
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list of classical problems
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ID
NAME
CODE
USERS
ACC %
5295
Adjacent Bit Counts
GNYR09F
3650
64.82
5296
Air Combat
COMBAT
64
14.85
5298
Interval Challenge
INTERVA2
137
16.61
5300
Mexican Standoff
MEXICAN
21
23.19
5301
Query Problem
QUERYSTR
682
37.34
5317
Tetravex Puzzle
TETRAVEX
282
46.09
5373
Four Mines
MINES4
14
8.10
5446
Fishing Net
FISHNET
166
31.17
5450
Tiles of Tetris, Not!
ANARC09B
3182
35.97
5451
Not So Flat After All
ANARC09C
1123
42.64
5452
Hop Do not Walk
ANARC09D
145
35.45
5453
Air Strike
ANARC09F
175
23.63
5462
Art Plagiarism
AP
10
23.44
5463
Bird or not bird
BIRD
115
38.74
5464
Counting triangles
CT
204
28.85
5465
Deliver pizza
DP
405
22.85
5466
Electronic queue
EQ
158
37.19
5467
Finding password
FP
180
16.63
5468
Going to school
GS
323
35.97
5469
Houses
HOUSES2
43
27.66
5511
Heavy Sequences
HSEQ
82
18.23
5522
Buy Your House
PHU09H
12
35.90
5523
Highway Patrol
PHU09K
15
47.95
5531
Kutevi Hard
KUTH
88
43.17
5541
Sequoiadendron
SEQUOIA
62
45.22
5542
Counting pairs
CPAIR
132
26.53
5566
Math with Bases
BSMATH2
15
11.28
5609
Knight Moves
KMOVES
100
40.35
5637
LL and ErBao
ISUN1
5
50.88
5638
Mobile Service Hard
SERVICEH
84
22.57
5640
Fractions on Tree
NG0FRCTN
926
61.19
5649
Divide Polygon
DTPOLY
33
20.72
5652
Snow White and the N dwarfs
PATULJCI
946
22.46
5672
Captain Selection
CAPTAIN
5
36.36
5673
Fractions on Tree ( reloaded !)
NG1FRCTN
244
38.22
5699
The last digit re-visited
LASTDIG2
7450
31.69
5703
Primes of Lambda
LPRIME
22
26.97
5725
123 Sequence
KSEQ
120
23.56
5732
Paradox
PARADOX
1223
27.93
5830
Alternating Permutations
ALTPERM
57
38.46
5831
Permutation Jumping
PERMJUMP
135
58.71
5832
AND Rounds
ANDROUND
1695
24.83
5833
XOR Rounds
XORROUND
356
30.69
5885
Troops of Sand Monsters
TROOPS
108
17.07
5902
Tri
CEOI09TR
77
20.52
5917
Factorial length
LENGFACT
3465
34.51
5969
Finding Maximum
FINDMAX
103
30.45
5970
Finding Primes
FINDPRM
1335
27.89
5971
LCM Sum
LCMSUM
3743
25.96
5972
Maximum Sum Sequences
MAXSUMSQ
1150
20.60
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