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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
334 The Philosophical Dispute   55 40.48
17
17
336 Exchange Operations   1 85 19.74
1
17
349 Around the world   1 81 25.00
17
17
362 Ignore the Garbage   1 417 43.67
1
17
374 Count maximum matrices   234 20.82
1
17
382 Decorate the wall   213 35.24
1
17
384 Any fool can do it   2 385 32.22
17
17
390 Billiard   2 886 54.38
13
17
391 Railroads   84 17.74
17
17
392 Spin   37 24.39
1
17
398 Roll Playing Games   117 14.15
34
17
405 Tin Cutter   134 33.72
17
17
407 Random Number   43 27.93
17
17
409 DEL Command   1 73 16.93
17
17
414 Equatorial Bonfire   1 71 30.48
34
17
449 Simple Numbers with Fractions Conversion   2 34 17.15
17
17
479 Permutation generator   1 126 27.48
21
17
484 Fossil in the Ice   434 22.09
34
17
681 Building the Tower   2 97 20.03
26
17
688 Toy Cars   1 554 17.65
9
17
693 Lethal Warfare   2 362 46.92
9
17
695 Unite Fast   1 128 27.30
17
17
698 Plane Hopping   1 287 25.80
17
699 Huge Knap Sack   1 138 24.89
17
17
872 Mark-up   119 29.50
34
17
904 Image Perimeters   3 331 59.44
17
17
912 Submatrix of submatrix   1 166 26.18
34
17
996 Continuous Fractions   1 274 37.37
17
17
1001 Babylonian Roulette   2 652 50.00
17
17
1391 Summing to a Square Prime   16 1415 54.06
12
17
1457 Help Blue Mary Please! (Act I)   13 1.75
34
17
1471 A Game of Pearls   1 39 30.00
17
17
1484 Search in XML   1 12 2.45
17
17
1505 Whac-a-Mole   2 42 15.87
50
17
1673 Ambitious Manager   5 460 36.49
21
17
1698 Polygonal Line Search   1 156 62.11
17
17
1700 Traveling by Stagecoach   9 447 38.55
19
17
1710 Two Ends   115 3756 41.99
18
17
1730 Counting Triangles II   2 399 20.89
17
17
1775 Boolean Logic   1 95 22.81
17
17
1784 IOICamp Sequence   1 318 12.73
1
17
1835 The SetStack Computer   1 154 28.94
26
17
1866 Making Pals   2 201 43.68
17
17
1869 Making Mountains Out Of Molehills   1 14 15.93
34
17
1876 Dragon Curves   2 174 50.12
1
17
1881 Instruction Decoder   2 664 50.71
17
17
1961 Roman Roads   1 97 30.58
9
17
1965 Set Cover   2 25 12.42
1
17
1991 Another Continuous Fractions Problem   1 82 19.89
34
17
2008 Dab of Backpack   17 667 23.63
21
17

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