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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
6700 Make it Smooth   2 72 20.61
17
17
6706 Making Chess Boards   27 22.88
6709 Multiplying by Rotation   1 92 51.94
6711 Transform a Sequence   40 30.43
6717 Two Paths   9 231 17.81
34
36
6720 Paper Fold   19 12.21
6726 Goldbach graphs   3 35 57.14
17
17
6731 Coeficientes   2 1260 50.09
10
9
6732 Camels   88 37.93
6738 Nice Quadrangles   180 40.97
6767 Sequence Function   14 18.52
6772 Happy Coins   14 2457 55.25
3
10
6773 Dinostratus Numbers   1 95 18.13
17
17
6779 Can you answer these queries VII   21 1432 19.39
38
28
6803 Absurd prices   2 388 23.82
12
12
6804 Cheating or Not   19 15.38
6805 Counter attack   3 177 60.98
17
17
6818 Capital City   94 2943 39.41
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   7 703 32.07
11
9
6829 Polynomial   2 194 30.39
17
17
6830 Soccer Bets   6 1600 51.20
8
9
6831 Two Ball Game   66 28.12
6832 To Score or not to score   45 28.72
6851 Fence   43 24.40
6852 Fish   4 185 30.37
26
21
6860 Asistent   25 13.45
6885 Wonkas Oompa-Impa Dilemma   15 21.74
6893 Power Sums   2 107 57.01
26
28
6895 Maximum Edge of Powers of Permutation   12 21.39
6898 Substring Problem   22 849 15.21
23
23
6906 Raining Parabolas   2 257 21.65
26
26
6917 Catch Sheep   2 40 25.41
34
34
6926 Tree game   1 55 9.34
34
34
6949 PIN   144 28.36
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 5.43
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 17.47
43
37

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