list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3195 Doors and Penguins   9 239 27.25
19
16
3196 Divisibility Relation   5 287 21.11
20
39
3197 Tree Construction   64 20.20
3249 Typesettin   2 34 45.45
1
1
3251 Slink   15 44.44
1
1
3253 Electronic Document Security   3 150 60.92
23
6
3254 Guard   14 51.72
3261 Race Against Time   37 1129 24.64
21
21
3266 K-query   248 5785 25.02
21
25
3267 D-query   458 13405 28.28
19
23
3273 Order statistic set   160 3256 26.27
22
20
3305 Roman Patrollers   46 59.46
3306 Very Special Boxes   110 31.35
9
26
3307 Hex Tile Equations   1 35 41.67
3308 The Bridges of San Mochti   2 64 54.40
17
17
3309 Bulletin Board   20 21.43
3310 Serial Numbers   1 34 29.27
34
17
3314 Umnozak   109 29.38
42
17
3322 Doubled Numbers   2 164 48.59
17
17
3347 Cestarine   61 34.57
3359 Stack   44 15.38
3360 Digital Image Recognition   27 20.69
3361 Cavli   1 40 44.87
17
17
3362 Setnja   2 244 21.35
9
17
3363 Svada   10 492 28.73
9
15
3372 Round Table   1 57 45.00
3373 Permutation Code   40 54.43
3374 Scavenger Hunt   10 1369 50.41
9
10
3375 Stamps   28 13766 41.70
5
3
3376 Parking Lot   1 138 20.05
17
17
3377 A Bug’s Life   342 15639 27.56
12
13
3379 String Shuffle   7 396 65.72
17
14
3380 Tourist   28 1111 38.11
19
31
3381 Highways   77 4454 38.10
10
9
3382 Monster Trap   1 27 22.44
34
17
3385 Yoda Goes Palindromic !   3 583 30.47
17
17
3387 Changing Maze   13 620 29.62
19
9
3388 Double Near Palindromes   1 450 34.08
17
17
3389 The Knights of the Round Circle   3 446 67.32
6
23
3390 Tribe Council   1 59 21.07
34
34
3393 Knot or Not   6 13.56
3394 Lagrange’s Four-Square Theorem   4 531 46.04
1
9
3405 Almost Shortest Path   79 1684 31.23
22
21
3406 Bases   68 20.57
3407 Candy   31 1361 42.56
12
20
3408 DNA Sequences   47 1987 26.10
16
20
3409 Electricity   2 807 47.77
5
1
3410 Feynman   122 34358 57.48
4
6
3411 Pole Position   2 916 47.36
8
8
3412 Higgs Boson   48 18.67

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