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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
4409 Circle vs Triangle   1 59 19.77
4410 Repair the Door   58 22.49
4411 Counting Expressions   29 42.47
4412 Factorization, Factorization, Factorization   1 52 41.28
4413 Gem   3 97 40.12
23
12
4414 Highway   53 21.89
4415 Power of Integer   1 272 21.95
17
26
4416 Jumping Hands   1 206 66.35
17
17
4420 Counting Graphs   60 35.55
4421 Irreducible polynomials over GF2   62 17.92
4429 Spelling Lists   2 181 31.72
17
34
4452 Simple Arithmetics II   55 7460 42.39
11
5
4453 Bouncing Balls II   221 27.59
4454 Brackets II   8 414 36.06
26
24
4455 Going to the Movies   86 36.33
4456 Jumbo Airlines   2 74 39.18
34
34
4457 Shopping II   3 147 35.01
17
1
4458 Rainbow   1 34 19.46
17
34
4459 Muzidabutur   31 25.33
4461 A Famous Airport Manager   23 16.36
4465 The Ant   17 738 25.84
20
15
4477 Flower growing   112 22.62
4478 Counting Expressions II   14 35.29
4480 Chaos Strings   14 529 30.04
17
22
4483 Roads Repair   7 180 32.64
20
23
4485 MobiZone vs VinaGone   7 327 33.45
17
31
4487 Can you answer these queries VI   26 1297 23.19
34
28
4491 Primes in GCD Table   2 740 34.69
17
26
4523 Binomial Coefficients   207 41.27
23
12
4525 Digger Octaves   6 379 35.78
17
21
4528 Frog Wrestling   66 43.23
4532 String reduction   2 166 16.56
17
30
4533 Determinant of Banded Matrices   16 32.67
4546 Tobo or not Tobo   2 260 19.54
26
26
4549 Adding Sevens   19 1924 33.14
17
6
4551 Match Maker   1 61 22.40
4552 Adding up Triangles   137 36.30
4555 Einbahnstrasse   2 487 26.49
22
9
4556 Think I will Buy Me a Football Team   30 2177 45.08
7
11
4557 Musical Chairs   23 2474 46.67
9
19
4558 I Speak Whales   182 42.26
17
17
4559 A Day at the Races   122 17.08
4560 The Double HeLiX   147 8874 37.57
11
10
4564 Chop Ahoy! Revisited!   55 2943 50.84
12
14
4565 What is your Logo   3 916 45.92
1
13
4568 Rotating Rings   1 288 29.48
17
17
4569 Let go to the movies   -3 159 18.12
50
34
4574 Riding in cycles   41 24.31
4580 ABCDEF   218 7836 29.23
14
16
4585 Star Wars   1 74 35.09

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