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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
18284 Petya and the Road Repairs   60 892 24.02
19
22
10508 Buttons   47 24.03
13940 Fibonacci vs Polynomial (HARD)   4 20 24.03
50
50
13031 Vision Field   28 24.04
34
34
3382 Monster Trap   1 32 24.06
34
17
15 The Shortest Path   157 7723 24.06
17
12
4172 Multiplicative digital root   1 77 24.07
13780 Audition   18 656 24.08
17
17
14742 Building Bridges(HARD)   10 454 24.08
14
17
5725 123 Sequence   2 124 24.09
1
1
1674 The Explosion   160 24.10
17
17
32088 Chessboard State 1: National Chess Tournament   5 16 24.14
42
21
9890 Piece it together   97 24.14
8064 Mixing Chemicals   2 187 24.16
26
34
23930 Overlapping Words   3 28 24.16
17
17
1456 The Secret of a Lost City   23 24.17
17
17
8793 Separate Points   4 125 24.17
17
17
29 Hash it!   14 3650 24.17
14
8
20845 Interesting Numbers   4 221 24.19
13
5
5300 Mexican Standoff   26 24.19
8328 Move the books   27 24.19
14957 Chinese game   26 24.19
279 Interesting number   26 846 24.20
19
24
34867 Coding Test   9 159 24.22
14
13
9943 Isabella Message   1 69 24.22
17
17
7632 Architecture   20 24.24
26181 Walking Jumper   5 24.24
1685 Grocery store   -1 202 24.26
17
17
13048 Escape from the Mines   2 69 24.27
23
23
116 Intervals   5 1200 24.29
21
24
2421 Incrementing The Integer   1 53 24.29
17
50
36238 Color Play   12 210 24.30
10
20
3941 Kth Shortest Path   25 24.30
7881 Ljutnja   3 641 24.32
34
21
5197 Differential Diagnosis   1 65 24.32
13833 Super Borboletas World   1 14 24.32
34
34
37380 Acronym   4 34 24.32
30
34
7874 Calculator   29 24.36
8945 Grid points (speed variation)   31 24.38
3006 Connect Line Segments   1 79 24.38
17
17
10820 Obsession   4 39 24.38
39
39
6851 Fence   43 24.40
3939 Search of Concatenated Strings   28 24.40
8916 Villages by the River   7 279 24.41
13
20
25 Pouring water   100 5584 24.42
19
22
6981 The Least Number   23 24.43
28464 Joining lines   3 61 24.43
5
17
697 Matrix Words   97 24.43
1
1
35152 Best Saved For The Last   1 14 24.44
1
17
7718 Number of common divisors   87 7297 24.45
11
13

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