list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2412 Arranging Amplifiers   10 1275 25.83
2
13
2413 Building Beacons   40 36.13
2414 Calculate The Cost   6 302 23.26
26
9
2415 Kirchhof Law   1 84 20.33
34
17
2416 Distinct Subsequences   85 3262 36.38
12
23
2417 Eliminate The Enemies   20 36.84
2418 Flying Frogs   57 40.51
2419 G-Line Grid   3 6.98
2420 Hospital at Hands   23 23.58
2421 Incrementing The Integer   46 24.90
2422 Jazzy Job   2 58 36.54
9
17
2423 Minimal Triangulations of Graphs   24 33.33
2426 Palindromes   9 897 25.19
17
14
2450 Counting Rabbits   6 1159 34.16
10
8
2485 Phone Lines   18 18.26
2511 Magic Program IV   27 17.99
2525 Encoding   2 728 29.23
9
17
2526 Decoding   7 1012 36.38
21
14
2527 Flipping Burned Pancakes   3 252 52.62
17
17
2528 Monkey Vines   3 768 43.97
17
9
2529 Model Rocket Height   1 76 53.46
1
17
2530 Tiling a Grid With Dominoes   51 1966 69.13
15
23
2531 Spatial Concepts Test   1 67 67.59
17
34
2565 Another Permutation Problem   1 50 23.25
34
17
2631 Chomp   105 47.33
2643 Starcraft I   51 22.42
2648 Archiver   1 44 13.74
34
50
2649 Weird sorting   1 56 26.05
1
34
2658 Art of War   17 18.60
2660 Example   1 9 20.59
17
17
2661 Illumination   4 2.27
2662 Put a Point in a Hyperspace   17 12.37
2666 Query on a tree IV   5 448 20.73
40
34
2668 Polygon   1 63 23.01
26
34
2670 Count Minimum Spanning Trees   4 147 17.29
28
39
2678 Closest distance   1 152 12.49
34
34
2699 Recursive Sequence (Version II)   12 720 28.26
22
23
2709 Untitled Problem   27 18.22
2713 Can you answer these queries IV   51 1686 21.74
22
20
2714 Cow Cars   5 611 44.62
14
17
2715 Glasnici   2 251 42.59
17
34
2716 Maximal Quadrilateral Area   2 5551 51.12
3
8
2727 Army Strength   39 11651 42.12
3
4
2728 Breaking in   4 196 27.00
34
22
2731 Inventing Test Data   2 251 33.99
14
27
2733 K Equal Digits   10 12.33
2734 Large party   28 22.40
2735 Simplify the Railroad System   49 33.71
17
1
2737 Perfect Rhyme   4 313 20.67
30
26
2738 Number Guessing Game   38 4567 63.04
6
12

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