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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9199 Circular Track   30 3351 40.29
7
14
9942 Holiday Accommodation   30 1120 26.18
23
25
14887 Good Travels   30 652 29.43
26
24
30734 Ada and Orange Tree   30 398 23.35
22
21
3407 Candy   31 1371 42.66
12
20
3861 Laser Phones   31 1420 28.89
20
18
3943 Nested Dolls   31 1239 23.66
20
27
9012 Maximum Self-Matching   31 759 46.81
24
29
9055 Most Frequent Value   31 824 23.66
15
21
10565 Alice Sieve   31 5079 53.39
2
7
13381 Manku Word   31 2117 47.15
13
15
18941 True Friends   31 1036 51.37
13
13
25967 Social Network Community   31 1031 31.26
10
12
27318 Primal Fear   31 1761 22.05
13
13
30690 Ada and Nucleobase   31 529 44.03
24
26
8 Complete the Sequence!   32 4522 36.74
16
18
666 Con-Junctions   32 1006 40.93
14
19
1754 Divisor Summation (Hard)   32 1351 15.69
22
20
5652 Snow White and the N dwarfs   32 1033 18.14
21
31
6285 Another Game With Numbers   32 1333 31.23
11
13
7258 Lexicographical Substring Search   32 2297 22.75
23
19
10108 Distributing Ballot Boxes   32 1165 36.21
11
15
11371 Answer the boss!   32 1244 35.26
15
15
18164 Atoms in the Lab   32 3844 25.79
8
5
4206 Fast Maximum Matching   33 2094 29.47
22
19
5977 Weird Function   33 1156 18.97
18
16
8132 Street Trees   33 3081 47.00
6
11
13015 Counting Primes   33 1476 22.56
16
14
13043 The Mirror of Galadriel   33 5980 64.50
2
3
13630 BATMAN1   33 595 38.54
19
22
28404 Ada and Field   33 577 25.39
21
17
4259 Pilots   34 1755 31.69
17
20
8952 Catapult that ball   34 3214 26.34
12
12
10381 Search in the dictionary!   34 1439 26.14
17
11
14834 Foxlings   34 1306 29.56
18
12
16211 Boring Factorials   34 1915 34.84
12
17
18185 Give Away   34 1361 22.49
20
19
22461 Smallest Number   34 775 27.58
13
15
24998 PLAYING WITH BITS   34 796 22.00
13
13
26607 CODER FIRST PROBLEM   34 1378 56.53
6
7
6171 Majority   35 5349 43.19
6
7
22455 SUM OF PRODUCT   35 1081 17.71
18
21
30669 Ada and Trip   35 994 31.07
14
11
10239 Between the Mountains   36 5822 39.21
7
7
10738 Ra-One Numbers   36 1703 33.49
18
22
32945 Ada and Subsequence   36 1050 46.74
7
8
26 Build the Fence   37 2268 28.14
22
17
338 Roads   37 1398 23.96
17
22
1811 Longest Common Substring   37 3533 22.38
20
19
1847 No Change   37 1684 36.16
11
14

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