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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2412 Arranging Amplifiers   18 3281 27.25
7
16
2413 Building Beacons   42 20.00
2414 Calculate The Cost   8 343 22.38
28
17
2415 Kirchhof Law   2 105 21.42
17
17
2416 Distinct Subsequences   94 3776 36.33
12
22
2417 Eliminate The Enemies   22 19.74
2418 Flying Frogs   63 35.71
2419 G-Line Grid   1 4 3.31
2420 Hospital at Hands   31 23.44
34
34
2421 Incrementing The Integer   1 53 24.29
17
50
2422 Jazzy Job   2 65 31.97
9
17
2423 Minimal Triangulations of Graphs   31 35.09
2426 Palindromes   9 1024 24.75
17
14
2450 Counting Rabbits   9 1235 34.25
10
12
2485 Phone Lines   19 14.19
2511 Magic Program IV   27 17.99
2525 Encoding   3 751 29.13
12
12
2526 Decoding   9 1041 36.51
23
15
2527 Flipping Burned Pancakes   3 265 52.59
17
17
2528 Monkey Vines   4 780 43.22
17
9
2529 Model Rocket Height   1 87 54.86
1
17
2530 Tiling a Grid With Dominoes   60 2437 64.87
16
24
2531 Spatial Concepts Test   1 74 66.39
17
34
2565 Another Permutation Problem   1 59 23.46
34
17
2631 Chomp   110 45.52
2643 Starcraft I   58 22.30
2648 Archiver   1 47 13.74
34
50
2649 Weird sorting   1 61 25.64
1
34
2658 Art of War   17 15.09
2660 Example   1 13 17.99
17
17
2661 Illumination   10 4.45
2662 Put a Point in a Hyperspace   19 10.00
2666 Query on a tree IV   4 738 13.56
38
34
2668 Polygon   1 68 20.45
26
34
2670 Count Minimum Spanning Trees   4 189 17.41
28
39
2678 Closest distance   1 167 13.83
28
34
2699 Recursive Sequence (Version II)   16 1011 26.10
26
24
2709 Untitled Problem   30 16.67
2713 Can you answer these queries IV   60 4325 17.68
21
21
2714 Cow Cars   6 670 37.51
15
17
2715 Glasnici   3 344 37.32
26
30
2716 Maximal Quadrilateral Area   -1 6255 50.22
3
8
2727 Army Strength   40 14564 41.23
4
4
2728 Breaking in   8 304 26.86
30
19
2731 Inventing Test Data   4 555 24.97
15
28
2733 K Equal Digits   16 13.65
2734 Large party   39 25.96
2735 Simplify the Railroad System   62 35.19
17
1
2737 Perfect Rhyme   5 436 16.98
27
26
2738 Number Guessing Game   42 4631 62.51
8
13

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