list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6805 Counter attack   3 177 60.98
17
17
6818 Capital City   95 2970 39.55
20
20
6819 Yet Another Assignment Problem   1 42 11.26
1
6823 Seller Bob   73 21.72
6824 Flag   1 78 24.84
34
34
6825 Field Plan   1 105 30.22
17
17
6826 Hacking   6 129 14.00
21
26
6827 Last Minute Construction   24 17.36
6828 Lineup   7 704 32.08
11
9
6829 Polynomial   2 194 30.39
17
17
6830 Soccer Bets   6 1600 51.20
8
9
6831 Two Ball Game   67 28.44
6832 To Score or not to score   46 29.01
6851 Fence   43 24.40
6852 Fish   4 186 30.44
26
21
6860 Asistent   25 13.45
6885 Wonkas Oompa-Impa Dilemma   16 22.22
6893 Power Sums   2 107 57.01
26
28
6895 Maximum Edge of Powers of Permutation   12 21.39
6906 Raining Parabolas   2 257 21.65
26
26
6917 Catch Sheep   2 40 25.41
34
34
6926 Tree game   1 58 9.84
34
34
6949 PIN   145 28.30
17
34
6950 A HUGE TOWER   1 131 48.34
1
34
6951 MP3 Player   42 28.57
6956 IOI2009 Mecho   3 167 18.36
28
23
6957 Partial Palindrome   3 5.00
6977 Odd Independent Sets   17 51.28
6978 Check 1324   4 101 23.08
17
17
6981 The Least Number   23 24.43
6985 Rearranging Digits   56 22.53
6986 Summing Slopes   61 28.79
6988 Beer Machines   5 33 17.36
43
37
6999 Avoiding SOS Grids   69 10.71
7001 Visible Lattice Points   1 563 30.21
17
34
7002 Buildings   5 81 37.90
21
30
7010 Police Business   6 25.00
7015 Party   -1 1057 51.01
3
15
7019 Zig-Zag rabbit   5 596 36.47
22
19
7022 Cow Patterns   3 128 26.15
28
28
7023 Cookies   19 28.80
7025 Roads in Berland   1 135 33.29
17
34
7034 Crashing Robots   3 172 48.02
17
1
7035 The Embarrassed Cryptographer   5 358 32.25
13
13
7050 Necklace Decomposition   48 60.61
7099 Advanced Edit Distance   11 410 31.96
10
20
7100 Back To The Polygon   88 34.80
7101 Charly And Nito   4 314 37.22
13
17
7102 Doing The Word Wrap   1 175 38.33
7103 Edit Distance   1 74 18.02
17
17

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