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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2412 Arranging Amplifiers   18 3242 27.33
7
16
2413 Building Beacons   40 32.58
2414 Calculate The Cost   8 339 22.30
28
17
2415 Kirchhof Law   1 90 19.13
34
17
2416 Distinct Subsequences   94 3724 36.28
12
22
2417 Eliminate The Enemies   22 26.55
2418 Flying Frogs   57 37.21
2419 G-Line Grid   1 4 7.14
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 1001 24.45
17
14
2450 Counting Rabbits   8 1221 34.04
10
12
2485 Phone Lines   18 17.80
2511 Magic Program IV   27 17.99
2525 Encoding   3 746 29.06
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   60 2408 64.83
16
24
2531 Spatial Concepts Test   1 73 65.83
17
34
2565 Another Permutation Problem   1 55 23.52
34
17
2631 Chomp   110 45.67
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   5 698 13.72
38
34
2668 Polygon   1 66 23.21
26
34
2670 Count Minimum Spanning Trees   4 180 17.16
28
39
2678 Closest distance   1 160 13.48
28
34
2699 Recursive Sequence (Version II)   16 1001 26.26
26
24
2709 Untitled Problem   27 17.75
2713 Can you answer these queries IV   60 4012 17.38
21
21
2714 Cow Cars   5 659 37.38
14
17
2715 Glasnici   3 330 37.54
26
30
2716 Maximal Quadrilateral Area   -1 6237 50.24
3
8
2727 Army Strength   37 14521 41.22
4
4
2728 Breaking in   8 288 26.47
30
19
2731 Inventing Test Data   4 456 25.98
15
28
2733 K Equal Digits   10 11.96
2734 Large party   34 23.98
2735 Simplify the Railroad System   57 36.08
17
1
2737 Perfect Rhyme   5 357 17.13
27
26
2738 Number Guessing Game   42 4630 62.53
8
13

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