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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3078 Copying DNA   44 23.53
3105 Power Modulo Inverted   6 1060 26.67
15
23
3106 Dictionary Subsequences   3 166 18.20
17
17
3107 Odd Numbers of Divisors   27 1051 18.31
22
22
3108 Charlesbert and Merangelou   71 47.31
3109 Longest Common Prefix   4 367 24.72
38
34
3110 Palindromic Number   3 94 20.15
9
17
3111 Stabards   3 160 43.10
12
23
3112 Strings   1 265 30.74
17
34
3133 Here We Go(relians) Again   3 168 39.85
12
12
3166 Permutation Exponentiation   33 14.85
3184 Game of Lines   8 1307 27.67
14
9
3195 Doors and Penguins   9 239 27.25
19
16
3196 Divisibility Relation   5 287 21.07
20
39
3197 Tree Construction   62 19.80
3208 Yet Another Longest Palindrome Problem   68 13.65
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 1119 24.59
21
21
3266 K-query   246 5693 24.97
21
25
3267 D-query   456 13174 28.15
19
23
3273 Order statistic set   159 3198 26.15
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   108 29.24
42
17
3322 Doubled Numbers   2 163 48.13
17
17
3347 Cestarine   61 34.57
3359 Stack   45 15.60
3360 Digital Image Recognition   27 19.58
3361 Cavli   1 40 44.87
17
17
3362 Setnja   2 243 21.31
9
17
3363 Svada   10 490 28.67
9
15
3372 Round Table   1 57 45.00
3373 Permutation Code   40 54.43
3374 Scavenger Hunt   10 1367 50.38
9
10
3375 Stamps   28 13745 41.70
5
3
3376 Parking Lot   1 138 20.05
17
17
3377 A Bug’s Life   342 15509 27.49
12
13
3379 String Shuffle   7 395 65.72
17
14
3380 Tourist   28 1093 38.15
19
31
3381 Highways   77 4408 37.98
10
9
3382 Monster Trap   1 27 22.44
34
17
3385 Yoda Goes Palindromic !   3 581 30.44
17
17
3387 Changing Maze   13 619 29.54
19
9

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