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list of classical problems
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ID
NAME
CODE
USERS
ACC %
3261
Race Against Time
RACETIME
1109
24.64
3305
Roman Patrollers
SA04C
46
59.46
3306
Very Special Boxes
SA04D
110
31.49
3314
Umnozak
UMNOZAK
106
28.96
3347
Cestarine
HIGHWAY
61
34.57
3374
Scavenger Hunt
SCAVHUNT
1366
50.36
3375
Stamps
STAMPS
13737
41.71
3376
Parking Lot
PARKINGL
138
20.05
3385
Yoda Goes Palindromic !
YODA
581
30.44
3393
Knot or Not
NOTOKNOT
6
13.56
3394
Lagrange’s Four-Square Theorem
LAGRANGE
530
45.99
3412
Higgs Boson
SAMER08H
48
18.93
3442
The last digit
LASTDIG
29637
26.91
3464
Clock
CLOCK1
54
36.11
3466
Another Longest Common Subsequence Problem
CS
6
31.58
3543
Matrica
MATRICA
53
39.38
3544
Binary Search Tree
BST
598
20.83
3545
Najkraci
NAJKRACI
183
28.74
3591
Patting Heads
PATHEADS
650
35.28
3605
Minimum Rotations
MINMOVE
910
19.05
3640
Hanoi Subway System Construction
HNSUBWAY
32
41.75
3723
Snooker
SNOOKER
450
50.09
3734
Periodni
PERIODNI
579
36.94
3749
Subset Sums
SUBSUMS
4082
26.39
3752
JEDNAKOST
JEDNAKOS
596
18.41
3753
GONDOR
GONDOR
382
53.06
3754
MAJMUN
MAJMUN
72
44.29
3763
George
GEORGE
522
52.29
3791
Street
STREET
666
51.38
3877
Cvjetici
CVJETICI
979
48.56
3882
Cijevi
CIJEVI
259
37.70
3898
Even Palindrome
PALDR
247
10.24
3931
Maximum Triangle Area
MTRIAREA
281
29.22
3946
K-th Number
MKTHNUM
5413
34.86
3953
Paid Roads
MMINPAID
251
26.80
3961
Journey with Pigs
MJOURNEY
130
41.30
3962
ELEVATOR II
MELE2
99
42.96
3975
Most Servings Meal
MKUHAR
350
26.37
3977
Police Query
POLQUERY
293
16.98
4010
Chặt cây
OPTCUT
8
36.00
4070
Two Professors
TWOPROF
101
14.34
4103
Extend to Palindrome
EPALIN
2432
29.95
4110
Fast Maximum Flow
FASTFLOW
2884
34.23
4157
Domino
DOMINO2
54
50.42
4164
A conjecture of Paul Erdős
HS08PAUL
2305
44.07
4166
Four colors
HS08FOUR
99
21.79
4168
Square-free integers
SQFREE
679
44.73
4172
Multiplicative digital root
DROOT
73
25.40
4176
A Knightly Pursuit
KPURSUIT
64
28.03
4177
Herding
HERDING
2714
35.23
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