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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6693 C - Karaoke   5 20.00
11384 Zoom Operation   4 20.00
11900 Spelling Suggestion   4 20.00
18438 Happy Valentine Day (Valentine Adventure Game)   9 20.00
27429 Changu Mangu in a Football Team   3 80 20.00
1
34
30826 Bernoulli numbers   4 7 20.00
23
12
32091 Chessboard State 2: International Chess Tournament   1 6 20.00
50
17
11391 EASY MATH   25 1354 20.02
19
17
412 K-path cover   181 20.04
1
50
861 Counting inversions   7 462 20.04
34
29
104 Highways   2 769 20.05
23
28
3376 Parking Lot   1 138 20.05
17
17
417 The lazy programmer   9 646 20.08
21
23
19037 Magical colorful cats (easy)   20 20.10
16185 Mining your own business   4 568 20.10
34
34
34118 Prime Pesticide   6 23 20.13
37
34
37475 Base Exploration   5 82 20.14
9
12
3110 Palindromic Number   3 94 20.15
9
17
25889 Drawing Lines   3 31 20.16
23
17
2963 Painting Blocks (Act II)   1 55 20.19
17
34
19274 Operators   17 589 20.19
14
20
17396 Dazzling Pearls   16 20.22
50
17
9505 Distinct Subtrees   1 17 20.24
17
17
14387 Science   13 20.24
27261 Matrices with XOR property   8 63 20.24
20
24
10440 Friends   32 20.25
11848 Power with Combinatorics   8 432 20.27
25
37
25482 Kimetto Kipsang and Kipchoge   1 40 20.29
34
34
12866 Nlogonian Tickets   12 286 20.29
25
24
8725 Closest Point Pair   30 1908 20.31
18
21
3488 The Top-Code   1 55 20.32
17
34
729 Move your armies   78 20.32
1
1
27520 Laser   5 38 20.37
17
17
6296 Experiment   26 20.39
33773 Ada and Dahlia   3 22 20.43
26
17
1466 Blue Mary Needs Help Again   5 207 20.44
30
34
21463 Arithmetic Rectangle   36 20.47
11273 Team Nim   2 82 20.48
9
26
9941 GRE Words   2 109 20.48
34
34
348 Expedition   58 2215 20.51
20
20
27198 Ballons Revisited   4 94 20.51
1
23
8073 The area of the union of circles   1 444 20.53
38
30
215 Panic in the Plazas   83 20.53
34
34
5902 Tri   1 77 20.54
34
50
5150 Junk-Mail Filter   1 119 20.54
16030 Psycho   13 831 20.55
10
11
13167 Totient in permutation (hard)   7 20.57
28009 Balance the parentheses   17 20.59
12407 Johnny The Gambler   7 952 20.62
8
6
5972 Maximum Sum Sequences   14 1145 20.62
15
18

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