list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2412 Arranging Amplifiers   9 1190 25.77
3
14
2413 Building Beacons   40 36.13
2414 Calculate The Cost   6 297 23.30
26
9
2415 Kirchhof Law   1 83 20.18
34
17
2416 Distinct Subsequences   73 3106 36.10
12
21
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 25.10
2422 Jazzy Job   2 57 38.34
9
17
2423 Minimal Triangulations of Graphs   24 33.33
2426 Palindromes   9 883 24.85
17
14
2450 Counting Rabbits   6 1146 34.01
10
8
2485 Phone Lines   18 18.26
2511 Magic Program IV   27 17.99
2525 Encoding   2 726 29.19
9
17
2526 Decoding   7 1007 36.31
21
14
2527 Flipping Burned Pancakes   3 252 52.72
17
17
2528 Monkey Vines   3 765 43.93
17
9
2529 Model Rocket Height   1 75 53.16
1
17
2530 Tiling a Grid With Dominoes   41 1881 69.26
15
23
2531 Spatial Concepts Test   1 66 67.29
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 55 25.74
1
34
2658 Art of War   17 18.75
2660 Example   1 9 20.59
17
17
2661 Illumination   4 2.29
2662 Put a Point in a Hyperspace   17 12.37
2666 Query on a tree IV   5 421 20.39
40
34
2668 Polygon   1 61 23.03
26
34
2670 Count Minimum Spanning Trees   3 136 16.30
26
42
2678 Closest distance   148 12.44
17
17
2699 Recursive Sequence (Version II)   11 671 27.88
21
22
2709 Untitled Problem   27 21.24
2713 Can you answer these queries IV   41 1535 20.43
22
21
2714 Cow Cars   5 607 44.46
14
17
2715 Glasnici   2 250 42.55
17
34
2716 Maximal Quadrilateral Area   3 5346 51.06
3
8
2727 Army Strength   35 11035 42.15
3
4
2728 Breaking in   3 170 26.84
36
26
2731 Inventing Test Data   2 236 33.68
14
27
2733 K Equal Digits   10 12.33
2734 Large party   27 21.98
2735 Simplify the Railroad System   48 33.33
17
1
2737 Perfect Rhyme   4 304 20.31
30
26
2738 Number Guessing Game   33 4520 63.20
5
11

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