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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1789 Huffman´s Greed   1 86 46.19
17
34
1788 Fractan   44 32.76
1787 Run Length Encoding   7 855 19.61
15
4
1786 In Danger   49 4361 53.59
7
13
1785 Code   2 219 25.58
26
30
1784 IOICamp Sequence   1 318 12.73
1
17
1776 DNA Laboratory   3 108 11.19
34
23
1775 Boolean Logic   1 95 22.81
17
17
1774 All Discs Considered   10 513 28.52
26
22
1772 Find The Determinant II   73 27.71
1771 Yet Another N-Queen Problem   2 320 24.40
17
34
1754 Divisor Summation (Hard)   31 1126 15.51
22
21
1748 Sequence Partitioning II   1 54 25.26
17
34
1744 Evaluate the polynomial   19 2632 48.69
5
7
1741 Tetris 3D   1 157 32.40
34
50
1739 Yet Another Equation   219 40.57
1731 Counting Triangles III   1 263 33.76
1730 Counting Triangles II   2 399 20.89
17
17
1728 Common Permutation   26 4143 46.50
6
6
1726 Exchange   18 6.52
1725 The Importance   97 41.48
1724 Counting Triangles   69 13016 34.03
7
21
1723 Bee Maja   3 556 53.51
17
21
1722 Life, the Universe, and Everything II   66 33.90
1716 Can you answer these queries III   232 10718 42.76
22
21
1715 Another Necklace Problem   50 19.00
1713 Funny scales   12 560 30.50
17
16
1712 Permalex   -1 168 19.49
34
34
1710 Two Ends   115 3756 41.99
18
17
1709 Swamp Things   285 40.35
1708 Square Count   70 30.29
1707 Reliable Nets   4 340 31.57
28
23
1706 Queens, Knights and Pawns   4 834 33.09
17
9
1705 The Game of Efil   89 49.61
1704 Countdown   298 25.14
26
9
1703 ACM (ACronymMaker)   52 1072 29.81
26
21
1702 Cleaning Robot   45 1528 34.33
28
20
1701 Earth Observation with a Mobile Robot Team   10 40.74
1700 Traveling by Stagecoach   9 447 38.55
19
17
1699 Numeral System   13 2214 67.15
6
3
1698 Polygonal Line Search   1 156 62.11
17
17
1697 Ohgas' Fortune   4 706 64.40
9
4
1696 Will Indiana Jones Get There   2 119 26.80
28
23
1695 Grandpa’s Rubik Cube   1 110 60.61
1693 Coconuts   13 921 29.80
21
28
1689 Hard Problem   15 28.07
1688 A Very Easy Problem!   40 6162 49.24
12
11
1687 Logic II   1 24 12.50
34
34
1685 Grocery store   198 24.17
1684 Frequent values   111 3756 27.68
20
21

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