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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3579 Disjoint Paths   4 311 20.67
24
27
228 Shamans   139 20.66
9
9
33372 Lannister Army   12 338 20.66
19
29
8795 Twenty Questions   1 40 20.65
5972 Maximum Sum Sequences   14 1140 20.64
15
18
31 Fast Multiplication   48 8620 20.64
15
12
3544 Binary Search Tree   6 587 20.63
11
20
1466 Blue Mary Needs Help Again   4 202 20.61
28
34
12407 Johnny The Gambler   7 951 20.61
8
6
28009 Balance the parentheses   17 20.59
16030 Psycho   13 822 20.57
10
11
13167 Totient in permutation (hard)   7 20.57
348 Expedition   58 2192 20.45
20
20
33773 Ada and Dahlia   3 22 20.43
26
17
8099 Crash´s number table   103 20.42
25784 Bubble Sort   10 627 20.40
16
17
6296 Experiment   26 20.39
215 Panic in the Plazas   82 20.39
34
34
8073 The area of the union of circles   1 438 20.38
38
30
27520 Laser   5 38 20.37
17
17
19274 Operators   17 586 20.32
14
20
34975 Prime Friendly Numbers   9 38 20.32
27
24
85 Dice Contest   41 20.32
34
34
3488 The Top-Code   1 55 20.32
17
34
32446 Sanvi and Magical Numbers   9 20.29
20170 Coloring Segments   4 86 20.27
30
34
11848 Power with Combinatorics   8 431 20.26
25
37
10440 Friends   32 20.25
9505 Distinct Subtrees   1 17 20.24
17
17
14387 Science   13 20.24
17396 Dazzling Pearls   16 20.22
50
17
27198 Ballons Revisited   4 92 20.22
1
23
37475 Base Exploration   5 81 20.21
9
12
12866 Nlogonian Tickets   12 263 20.20
25
24
25214 Ohani And The Game   77 20.19
11
8
2963 Painting Blocks (Act II)   1 55 20.19
17
34
8725 Closest Point Pair   31 1843 20.18
19
21
5902 Tri   1 76 20.17
34
50
25889 Drawing Lines   3 31 20.16
23
17
3110 Palindromic Number   3 94 20.15
9
17
19037 Magical colorful cats (easy)   20 20.10
417 The lazy programmer   9 645 20.09
21
23
21572 Marble & store   2 118 20.08
14
14
25482 Kimetto Kipsang and Kipchoge   1 39 20.07
34
34
9941 GRE Words   2 103 20.05
34
34
3376 Parking Lot   1 138 20.05
17
17
412 K-path cover   181 20.04
1
50
729 Move your armies   77 20.04
861 Counting inversions   6 458 20.04
34
28
681 Building the Tower   2 97 20.03
26
17

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