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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
241 Arranging the Blocks   53 12.91
261 Triangle Partitioning   203 58.40
272 Cave Exploration   40 9.78
17
1
275 The Water Ringroad   7 18.28
278 Bicycle   61 13.58
34
1
280 Lifts   45 17.66
17
1
283 Naptime   656 26.07
17
1
290 Polynomial Equations   63 22.85
17
17
293 Officers on the Beat   11 17.05
296 Teamwork is Crucial   70 30.88
318 Pythagorean Legacy   33 19.05
1
34
325 The Tall Windmills   82 22.99
34
327 Platon and Socrates   50 12.50
9
34
332 Hard Question   105 32.91
1
34
334 The Philosophical Dispute   59 37.15
17
17
351 Ha-noi!   383 42.37
1
1
363 Crane Operator   4 2.02
369 Math I   88 25.06
34
34
371 Boxes   548 35.91
1
26
374 Count maximum matrices   241 20.87
1
17
380 Bullshit Bingo   720 33.70
382 Decorate the wall   215 34.87
1
17
383 European railroad tracks   225 30.18
385 Game schedule required   154 28.75
34
1
386 Help the problem setter   100 44.37
391 Railroads   88 17.40
17
17
392 Spin   43 26.23
1
17
393 Hexagon   76 48.63
17
1
396 Hit or Miss   131 42.90
1
1
398 Roll Playing Games   120 14.62
34
17
401 Translations   136 38.05
17
34
404 Scanner   58 12.46
405 Tin Cutter   138 33.97
17
17
406 Logic   110 22.85
17
9
407 Random Number   46 28.51
17
17
412 K-path cover   184 20.04
1
50
418 Necklace   44 16.85
421 Another Road Problem   69 24.77
17
34
481 Roots of polynomial   43 26.59
17
34
484 Fossil in the Ice   445 22.25
34
17
598 Increasing Subsequences   146 34.38
34
34
677 A place for the brewery   217 28.18
17
1
682 Pairs of Integers   207 25.73
1
1
697 Matrix Words   96 24.38
1
1
700 Branch Prediction   78 19.04
17
1
702 Barn Expansion   153 23.19
1
17
729 Move your armies   79 20.00
1
1
734 Ivan and his interesting game   228 32.89
17
17
757 Thermal Luminescence   129 37.55
1
1
760 Convex Hull 3D   123 41.21

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