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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3078 Copying DNA   43 21.34
3105 Power Modulo Inverted   6 1104 27.09
15
23
3106 Dictionary Subsequences   3 168 18.30
17
17
3107 Odd Numbers of Divisors   27 1063 18.39
22
22
3108 Charlesbert and Merangelou   72 45.41
3109 Longest Common Prefix   4 381 25.10
38
34
3110 Palindromic Number   3 98 20.63
9
17
3111 Stabards   3 166 43.65
12
23
3112 Strings   1 266 30.80
17
34
3133 Here We Go(relians) Again   3 170 40.19
12
12
3166 Permutation Exponentiation   33 14.72
3184 Game of Lines   8 1311 27.66
14
9
3195 Doors and Penguins   9 240 27.28
19
16
3196 Divisibility Relation   5 287 21.11
20
39
3197 Tree Construction   64 20.10
3208 Yet Another Longest Palindrome Problem   69 13.75
3249 Typesettin   2 35 46.07
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 1132 24.65
21
21
3266 K-query   248 5854 25.12
21
25
3267 D-query   459 13493 28.32
19
23
3273 Order statistic set   160 3319 26.39
22
20
3305 Roman Patrollers   47 57.26
3306 Very Special Boxes   113 31.88
9
26
3307 Hex Tile Equations   1 37 43.36
3308 The Bridges of San Mochti   2 67 55.91
17
17
3309 Bulletin Board   20 21.43
3310 Serial Numbers   1 35 29.84
34
17
3314 Umnozak   112 29.81
42
17
3322 Doubled Numbers   2 165 47.58
17
17
3347 Cestarine   61 32.81
3359 Stack   45 15.54
3360 Digital Image Recognition   27 20.69
3361 Cavli   1 41 44.10
17
17
3362 Setnja   2 244 21.33
9
17
3363 Svada   10 494 28.79
9
15
3372 Round Table   1 56 44.44
3373 Permutation Code   42 55.56
3374 Scavenger Hunt   10 1370 50.42
9
10
3375 Stamps   29 13771 41.70
5
3
3376 Parking Lot   1 139 20.09
17
17
3377 A Bug’s Life   342 15686 27.57
12
13
3379 String Shuffle   7 398 65.49
17
14
3380 Tourist   28 1121 38.05
19
31
3381 Highways   77 4463 38.13
10
9
3382 Monster Trap   1 27 22.22
34
17
3385 Yoda Goes Palindromic !   3 585 30.56
17
17
3387 Changing Maze   13 621 29.65
19
9

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