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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2413 Building Beacons   40 32.82
2414 Calculate The Cost   8 336 22.26
28
17
2415 Kirchhof Law   1 90 19.13
34
17
2416 Distinct Subsequences   94 3686 36.20
12
22
2417 Eliminate The Enemies   22 26.79
2418 Flying Frogs   57 37.43
2419 G-Line Grid   1 4 7.27
2420 Hospital at Hands   25 23.08
34
34
2421 Incrementing The Integer   1 50 23.55
17
50
2422 Jazzy Job   2 62 35.19
9
17
2423 Minimal Triangulations of Graphs   27 33.33
2426 Palindromes   9 984 24.35
17
14
2450 Counting Rabbits   8 1212 34.02
10
12
2485 Phone Lines   18 17.80
2511 Magic Program IV   27 17.99
2525 Encoding   3 744 29.02
12
12
2526 Decoding   9 1034 36.32
23
15
2527 Flipping Burned Pancakes   3 258 52.38
17
17
2528 Monkey Vines   4 775 43.31
17
9
2529 Model Rocket Height   1 80 54.27
1
17
2530 Tiling a Grid With Dominoes   57 2383 65.01
15
23
2531 Spatial Concepts Test   1 73 67.52
17
34
2565 Another Permutation Problem   1 56 24.15
34
17
2631 Chomp   108 45.91
2643 Starcraft I   54 22.25
2648 Archiver   1 44 13.46
34
50
2649 Weird sorting   1 58 26.10
1
34
2658 Art of War   17 17.65
2660 Example   1 12 21.43
17
17
2661 Illumination   6 3.40
2662 Put a Point in a Hyperspace   17 11.06
2666 Query on a tree IV   5 668 13.66
38
34
2668 Polygon   1 66 23.21
26
34
2670 Count Minimum Spanning Trees   4 175 17.25
28
39
2678 Closest distance   1 159 13.52
28
34
2699 Recursive Sequence (Version II)   15 980 26.33
26
23
2709 Untitled Problem   27 17.75
2713 Can you answer these queries IV   59 3632 16.90
21
21
2714 Cow Cars   5 646 37.41
14
17
2715 Glasnici   2 313 37.81
23
34
2716 Maximal Quadrilateral Area   -1 6215 50.28
3
8
2727 Army Strength   38 14469 41.25
4
4
2728 Breaking in   7 275 26.42
30
19
2731 Inventing Test Data   3 374 28.12
14
27
2733 K Equal Digits   10 11.96
2734 Large party   34 24.35
2735 Simplify the Railroad System   56 36.02
17
1
2737 Perfect Rhyme   5 331 18.56
27
26
2738 Number Guessing Game   42 4626 62.56
8
13
2742 Summing Sums   17 903 19.16
16
23

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