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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3197 Tree Construction   62 20.00
6693 C - Karaoke   5 20.00
8277 Number of Prime Strings   2 87 20.00
17
26
9941 GRE Words   2 102 20.00
34
34
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
27494 Happiness   5 20.00
32091 Chessboard State 2: International Chess Tournament   1 6 20.00
50
17
37175 Submatrix Sum of a Sparse Matrix   -1 5 20.00
11391 EASY MATH   24 1290 20.01
20
18
681 Building the Tower   2 97 20.03
26
17
861 Counting inversions   6 458 20.04
34
28
412 K-path cover   181 20.04
1
50
729 Move your armies   77 20.04
3376 Parking Lot   1 138 20.05
17
17
25482 Kimetto Kipsang and Kipchoge   1 39 20.07
34
34
8099 Crash´s number table   99 20.07
417 The lazy programmer   9 645 20.09
21
23
19037 Magical colorful cats (easy)   20 20.10
21572 Marble & store   2 118 20.10
14
14
25889 Drawing Lines   3 31 20.16
23
17
8725 Closest Point Pair   31 1839 20.17
19
21
2963 Painting Blocks (Act II)   1 55 20.19
17
34
3110 Palindromic Number   3 94 20.19
9
17
25214 Ohani And The Game   77 20.19
11
8
12866 Nlogonian Tickets   12 263 20.20
25
24
37475 Base Exploration   5 81 20.21
9
12
27198 Ballons Revisited   4 92 20.22
1
23
17396 Dazzling Pearls   16 20.22
50
17
9505 Distinct Subtrees   1 17 20.24
17
17
14387 Science   13 20.24
10440 Friends   32 20.25
11848 Power with Combinatorics   8 431 20.26
25
37
20170 Coloring Segments   4 86 20.27
30
34
19274 Operators   17 584 20.28
14
20
32446 Sanvi and Magical Numbers   9 20.29
40457 Mines of Moria   10 20.29
85 Dice Contest   41 20.32
34
34
3488 The Top-Code   1 55 20.32
17
34
34975 Prime Friendly Numbers   9 38 20.32
27
24
27520 Laser   5 38 20.37
17
17
8073 The area of the union of circles   1 438 20.38
38
30
215 Panic in the Plazas   82 20.39
34
34
42340 Bracket Check   2 21 20.39
9
1
6296 Experiment   26 20.39
25784 Bubble Sort   10 625 20.40
16
17
33773 Ada and Dahlia   3 22 20.43
26
17
348 Expedition   58 2187 20.43
20
20

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