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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3078 Copying DNA   45 19.85
3105 Power Modulo Inverted   6 1123 27.23
15
23
3106 Dictionary Subsequences   3 168 18.36
17
17
3107 Odd Numbers of Divisors   27 1068 18.40
22
22
3108 Charlesbert and Merangelou   72 43.41
3109 Longest Common Prefix   4 388 25.23
38
34
3110 Palindromic Number   3 98 20.75
9
17
3111 Stabards   3 166 43.65
12
23
3112 Strings   1 268 31.28
17
34
3133 Here We Go(relians) Again   3 170 40.19
12
12
3166 Permutation Exponentiation   34 14.89
3184 Game of Lines   8 1313 27.74
14
9
3195 Doors and Penguins   9 241 27.30
19
16
3196 Divisibility Relation   5 290 21.14
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 34.04
1
1
3253 Electronic Document Security   3 155 60.94
23
6
3254 Guard   15 43.24
3261 Race Against Time   38 1169 24.78
21
21
3266 K-query   248 5980 25.30
21
25
3267 D-query   460 13743 28.41
19
23
3273 Order statistic set   160 3391 26.58
22
20
3305 Roman Patrollers   52 59.02
3306 Very Special Boxes   113 31.81
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   23 21.53
3310 Serial Numbers   1 35 29.84
34
17
3314 Umnozak   113 29.75
42
17
3322 Doubled Numbers   2 167 49.15
17
17
3347 Cestarine   63 28.86
3359 Stack   47 15.73
3360 Digital Image Recognition   27 20.32
3361 Cavli   1 42 42.86
17
17
3362 Setnja   2 248 21.46
9
17
3363 Svada   10 495 28.85
9
15
3372 Round Table   1 61 44.04
3373 Permutation Code   43 56.10
3374 Scavenger Hunt   10 1373 50.48
9
10
3375 Stamps   29 13777 41.71
5
3
3376 Parking Lot   1 141 20.21
17
17
3377 A Bug’s Life   343 15826 27.66
12
13
3379 String Shuffle   7 399 65.73
17
14
3380 Tourist   28 1144 37.80
19
31
3381 Highways   77 4500 38.21
10
9
3382 Monster Trap   1 31 23.70
34
17
3385 Yoda Goes Palindromic !   3 585 30.49
17
17
3387 Changing Maze   13 625 29.76
19
9

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