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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11175 The Ball Game   15 2291 44.10
2
12
14974 Foxling Feeding Frenzy   15 466 41.90
15
16
15376 Running Median   15 1182 26.19
11
9
15429 Counting Ids   15 2008 49.51
5
5
15560 Help the old King   15 554 37.22
15
15
15766 Enjoy Sum with Operations   15 377 27.21
20
26
17110 Black Widow Rings   15 2727 52.18
3
3
17113 Finding the Tesserect   15 928 37.27
11
15
17918 Gopu and Validity of Arrangement   15 1658 43.31
3
6
18174 REAL ROOTS   15 1287 60.04
6
12
18273 Encode Integer   15 837 25.51
8
7
18714 Can You Make It Empty 2   15 1324 29.23
8
11
18965 Milk Scheduling   15 1056 25.56
10
15
21347 Tulip And Numbers   15 1039 21.31
14
14
25158 Star   15 314 34.60
12
19
26212 Keyur and Mohib Tree   15 218 40.63
8
12
28265 Ada and Rain   15 426 55.40
10
14
28609 Boat Burglary   15 155 14.43
23
25
30454 Luke vs. Darth Vader   15 225 22.33
16
15
32103 Degree of a Tree   15 231 30.62
13
12
32840 Ada and Digits   15 182 41.20
20
18
36226 Reduce the array   15 798 30.12
4
6
207 Three-coloring of binary trees   16 887 36.10
20
17
277 City Game   16 1338 39.37
20
21
1391 Summing to a Square Prime   16 1429 53.97
12
17
1812 Longest Common Substring II   16 2103 18.39
30
28
2699 Recursive Sequence (Version II)   16 1014 26.13
26
24
6288 Treeramids   16 1096 51.97
21
19
7487 Flibonakki   16 867 29.53
21
29
8057 Square Free Factorization   16 1446 41.59
7
15
9935 Break the Chocolate   16 1659 34.62
4
17
10477 GM plants   16 344 29.20
25
30
10712 Easy Calculation   16 1377 35.93
10
14
13805 X-MEN   16 924 27.87
17
19
15208 Minimum Cost   16 1478 57.34
9
11
15620 Postering   16 737 34.00
16
21
15995 Self Numbers   16 904 38.32
12
6
18176 FRIENDSHIP!!!   16 631 26.94
15
21
26745 Grid   16 672 33.11
13
9
27367 Game of Squares   16 464 40.73
7
9
28409 Ada and Cycle   16 1173 25.67
14
17
30116 Can you draw it or not?   16 201 38.49
5
9
30500 THE HONEYCOMB MAZE   16 653 27.24
17
15
31290 Math is Love   16 1215 41.15
6
5
32058 Harbinger vs Sciencepal   16 175 35.54
17
21
32059 Ada and Taxes   16 113 36.48
23
23
32951 Ada and Substring   16 430 36.86
21
23
32961 Ada and Jobs   16 158 10.37
28
28
33210 Ada and Alley   16 380 37.33
7
14
34875 Minimum Stocks   16 674 25.46
13
12

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