list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
404 Scanner   56 12.24
403 Sort fractions   6 706 32.96
9
21
402 Hike on a Graph   8 762 40.21
15
19
401 Translations   131 38.11
17
34
400 To and Fro   90 23288 55.52
14
7
399 Team Rankings   1 385 53.26
17
9
398 Roll Playing Games   117 14.15
34
17
397 I Conduit   3 190 15.40
21
21
396 Hit or Miss   129 44.75
1
1
395 Anti-prime Sequences   2 338 49.32
9
9
394 Alphacode   577 22169 27.26
15
15
393 Hexagon   70 48.70
17
1
392 Spin   38 24.40
1
17
391 Railroads   84 17.69
17
17
390 Billiard   2 886 54.32
13
17
389 Use of Hospital Facilities   1 50 11.68
34
26
388 Menu   7 347 18.89
25
16
387 Travelling tours   1 304 53.89
30
34
386 Help the problem setter   97 45.82
385 Game schedule required   148 28.71
34
1
384 Any fool can do it   2 385 32.22
17
17
383 European railroad tracks   222 30.23
382 Decorate the wall   213 35.24
1
17
381 106 miles to Chicago   50 3150 36.57
15
14
380 Bullshit Bingo   708 33.46
379 Ambiguous Permutations   70 12320 59.56
4
5
377 Taxi   14 1235 28.41
13
16
376 A concrete simulation   15 1715 34.29
11
12
375 Query on a tree   164 5583 17.52
33
27
374 Count maximum matrices   234 20.80
1
17
373 Greedy island   5 505 33.52
26
26
372 The Benefactor   48 3042 35.48
12
13
371 Boxes   536 35.69
1
26
370 Ones and zeros   149 4455 30.03
19
22
369 Math I   87 25.41
34
34
368 Cobbled streets   98 5382 50.78
13
12
367 Empodia   2 160 27.61
17
26
366 Farmer   1 264 17.01
1
1
365 Phidias   25 1211 47.21
13
21
364 Pocket Money   53 2238 38.52
15
18
362 Ignore the Garbage   1 418 43.70
1
17
359 Alpha Centauri Tennis   2 1730 50.43
3
8
351 Ha-noi!   381 42.18
1
1
350 Landscaping   1 91 29.91
349 Around the world   1 81 25.00
17
17
348 Expedition   58 2202 20.44
20
20
347 Lazy Cows   4 263 28.58
27
21
346 Bytelandian gold coins   541 25702 25.14
11
12
345 Mixtures   255 8817 36.39
17
21
344 Poker   3 891 37.48
17
9

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