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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2151 Digital Calculator   23 5.69
2152 Hilbert Curve   1 13 16.29
34
34
2153 Internet is Faulty   69 38.54
2154 Kruskal   85 14.03
2157 Anti-Blot System   104 12967 45.24
10
5
2159 Delicious Cake   30 14.64
2160 Here-There   30 24.76
2161 Pixel Shuffle   34 21.03
50
17
2162 Towers of Powers   26 13.87
2185 Musical Optimization   1 73 43.15
2189 Making Pairs   1 48 16.54
34
42
2202 Tan and His Interesting Game   46 25.18
2415 Kirchhof Law   2 105 21.42
17
17
2643 Starcraft I   58 22.30
2714 Cow Cars   6 670 37.51
15
17
2715 Glasnici   3 349 37.40
26
30
2716 Maximal Quadrilateral Area   -1 6255 50.22
3
8
2734 Large party   40 26.19
2742 Summing Sums   17 921 19.10
16
23
2743 Prefix Tiling   1 166 27.86
17
34
2815 Increasing Subsequences   53 2184 28.16
15
22
2816 Common Subsequences   5 223 28.92
26
34
2817 Distinct Increasing Subsequences   9 795 24.57
22
26
2826 Round-Robin Scheduling   12 650 36.17
23
22
2829 Time Limit Exceeded   4 260 21.67
34
34
2905 Not a Triangle   93 5052 38.67
11
11
2944 Emmons   7 7.19
3070 How many subsequences   1 99 9.90
34
34
3133 Here We Go(relians) Again   3 171 40.30
12
12
3184 Game of Lines   8 1315 27.76
14
9
3195 Doors and Penguins   9 244 27.35
19
16
3261 Race Against Time   38 1181 24.86
21
21
3305 Roman Patrollers   53 59.35
3306 Very Special Boxes   114 31.96
9
26
3314 Umnozak   115 30.02
42
17
3347 Cestarine   64 29.10
3374 Scavenger Hunt   10 1375 50.52
9
10
3375 Stamps   29 13789 41.72
5
3
3376 Parking Lot   1 143 20.40
17
17
3385 Yoda Goes Palindromic !   3 586 30.53
17
17
3393 Knot or Not   10 16.67
3394 Lagrange’s Four-Square Theorem   4 532 46.08
1
9
3412 Higgs Boson   52 19.09
3442 The last digit   190 30122 26.99
9
8
3464 Clock   3 66 36.47
34
9
3466 Another Longest Common Subsequence Problem   6 5.66
3543 Matrica   56 39.90
3544 Binary Search Tree   6 611 21.01
11
20
3545 Najkraci   6 188 28.92
28
34
3591 Patting Heads   3 659 35.33
17
17

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