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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
4409 Circle vs Triangle   1 60 19.71
4410 Repair the Door   61 22.80
4411 Counting Expressions   29 31.96
4412 Factorization, Factorization, Factorization   1 55 41.11
4413 Gem   3 98 39.83
23
12
4414 Highway   57 21.71
4415 Power of Integer   1 274 21.96
17
26
4416 Jumping Hands   1 208 65.73
17
17
4420 Counting Graphs   74 36.58
4421 Irreducible polynomials over GF2   63 17.89
4429 Spelling Lists   2 191 32.19
17
34
4452 Simple Arithmetics II   55 7512 42.28
11
5
4453 Bouncing Balls II   227 28.06
4454 Brackets II   8 416 36.17
26
24
4455 Going to the Movies   88 36.56
4456 Jumbo Airlines   2 76 37.14
34
34
4457 Shopping II   3 151 34.86
17
1
4458 Rainbow   2 37 19.44
34
42
4459 Muzidabutur   34 27.56
4461 A Famous Airport Manager   26 16.97
4465 The Ant   17 743 25.90
20
15
4477 Flower growing   115 22.02
4478 Counting Expressions II   14 17.65
4480 Chaos Strings   14 533 30.10
17
22
4483 Roads Repair   7 182 32.65
20
23
4485 MobiZone vs VinaGone   7 335 33.74
17
31
4487 Can you answer these queries VI   27 1352 23.53
34
28
4491 Primes in GCD Table   2 819 36.14
17
26
4523 Binomial Coefficients   209 41.49
23
12
4525 Digger Octaves   6 390 35.47
17
21
4528 Frog Wrestling   68 37.26
4532 String reduction   2 168 16.66
17
30
4533 Determinant of Banded Matrices   20 33.33
4546 Tobo or not Tobo   2 267 19.43
26
26
4549 Adding Sevens   19 1932 33.25
17
6
4551 Match Maker   1 61 22.28
4552 Adding up Triangles   140 35.10
4555 Einbahnstrasse   2 489 26.53
22
9
4556 Think I will Buy Me a Football Team   30 2187 45.14
7
11
4557 Musical Chairs   23 2490 46.77
9
19
4558 I Speak Whales   187 42.41
17
17
4559 A Day at the Races   127 17.69
4560 The Double HeLiX   147 8957 37.55
11
10
4564 Chop Ahoy! Revisited!   55 2963 50.87
12
14
4565 What is your Logo   3 919 46.01
1
13
4568 Rotating Rings   1 297 29.67
17
17
4569 Let go to the movies   -3 160 18.20
50
34
4574 Riding in cycles   43 23.95
4580 ABCDEF   218 7907 29.33
14
16
4585 Star Wars   1 76 35.45

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