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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
25480 Invading aliens   15 17.91
34357 Ludic Numbers (hard)   2 4 17.91
688 Toy Cars   1 580 17.91
11
17
7563 Hi6   37 17.90
26
26
8284 Weighted Sum   6 511 17.86
9
13
30691 Ada and Diary   2 56 17.85
9
9
1812 Longest Common Substring II   15 1878 17.85
31
28
25001 Red Blue Line Segments   2 260 17.81
28
26
2485 Phone Lines   18 17.80
6773 Dinostratus Numbers   1 92 17.79
17
17
2709 Untitled Problem   27 17.75
11355 SQUARE TO SQUARE   21 17.74
22274 Missing Side   1 87 17.74
17
9
30973 Ada and Tomato   4 54 17.74
30
34
24191 Eagle and Dogs   18 563 17.72
21
28
2141 Golden Garden   17 17.70
22455 SUM OF PRODUCT   34 1048 17.65
18
20
2658 Art of War   17 17.65
8734 Charlie and the Chocolate Factory   1 40 17.65
26
34
9645 Joy of CompuTenis   6 17.65
16825 Divisors   6 87 17.64
20
24
34864 Large Sum   8 205 17.64
12
12
9124 Sightseeing   116 17.61
18510 Ross generates Data   4 97 17.60
34
26
12241 Classification from ErdÅ‘s and Selfridge   5 27 17.59
28
28
41455 ....   1 11 17.58
17
17
26054 BMW   21 617 17.56
13
14
1487 Query on a tree III   547 17.55
16580 Query on a tree VII   1 259 17.55
34
34
21690 Power the Power Up   10 478 17.55
17
23
375 Query on a tree   164 5635 17.55
33
27
86 November Rain   4 294 17.54
21
21
6717 Two Paths   8 217 17.52
34
36
19224 Lights, Snakes and Cages   5 85 17.52
24
34
13826 The Grandslam of Grandslams!   11 17.50
14665 Delta catheti (hard)   1 3 17.50
18393 Hamiltonian Cycles   1 25 17.49
17
17
16280 Flowers of Babylon   1 47 17.48
17
50
391 Railroads   85 17.48
17
17
18932 Sum of primes (reverse mode)   5 21 17.44
45
45
10596 Monkey and apples   6 162 17.41
30
17
2273 Ferries   28 17.39
13592 Expected Time to Love   1 39 17.39
17
34
15892 Cave   1 11 17.39
17
34
280 Lifts   43 17.38
17
1
1335 Maze   62 17.38
17
17
16483 Lucky Cities   2 31 17.35
17
26
8105 Dot Product Maximization   3 71 17.33
17
17
36718 Fashionable self-describing numbers   6 51 17.33
30
34
30756 Ada and Numbering   10 119 17.32
34
34

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