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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3078 Copying DNA   45 19.92
3105 Power Modulo Inverted   6 1114 27.15
15
23
3106 Dictionary Subsequences   3 168 18.36
17
17
3107 Odd Numbers of Divisors   27 1065 18.39
22
22
3108 Charlesbert and Merangelou   72 44.50
3109 Longest Common Prefix   4 385 25.22
38
34
3110 Palindromic Number   3 98 20.75
9
17
3111 Stabards   3 166 43.65
12
23
3112 Strings   1 267 30.84
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 1312 27.73
14
9
3195 Doors and Penguins   9 241 27.30
19
16
3196 Divisibility Relation   5 288 21.16
20
39
3197 Tree Construction   64 20.10
3208 Yet Another Longest Palindrome Problem   68 13.77
3249 Typesettin   2 35 46.07
1
1
3251 Slink   15 43.24
1
1
3253 Electronic Document Security   3 151 60.90
23
6
3254 Guard   14 45.45
3261 Race Against Time   38 1147 24.73
21
21
3266 K-query   248 5920 25.22
21
25
3267 D-query   460 13588 28.40
19
23
3273 Order statistic set   160 3353 26.49
22
20
3305 Roman Patrollers   47 57.26
3306 Very Special Boxes   112 31.51
9
26
3307 Hex Tile Equations   1 37 43.36
3308 The Bridges of San Mochti   2 68 56.06
17
17
3309 Bulletin Board   22 22.48
3310 Serial Numbers   1 35 29.84
34
17
3314 Umnozak   112 29.81
42
17
3322 Doubled Numbers   2 167 49.15
17
17
3347 Cestarine   61 31.23
3359 Stack   45 15.50
3360 Digital Image Recognition   27 20.40
3361 Cavli   1 40 43.21
17
17
3362 Setnja   2 245 21.33
9
17
3363 Svada   10 494 28.78
9
15
3372 Round Table   1 58 43.39
3373 Permutation Code   43 56.10
3374 Scavenger Hunt   10 1371 50.45
9
10
3375 Stamps   29 13772 41.70
5
3
3376 Parking Lot   1 140 20.12
17
17
3377 A Bug’s Life   343 15748 27.61
12
13
3379 String Shuffle   7 399 65.73
17
14
3380 Tourist   28 1129 38.07
19
31
3381 Highways   77 4473 38.15
10
9
3382 Monster Trap   1 31 23.70
34
17
3385 Yoda Goes Palindromic !   3 585 30.56
17
17
3387 Changing Maze   13 622 29.68
19
9

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