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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
28009 Balance the parentheses   17 20.59
33039 Amazing Factor Sequence (hard)   2 17 61.72
50
50
34222 Bucket Selection   4 17 15.48
23
34
36123 Plant the potatoes   2 17 20.93
17
26
37389 Weird Construction   2 17 8.77
1
6
40469 Watching over the Mines of Moria   17 44.23
17
17
1726 Exchange   18 6.52
2485 Phone Lines   18 17.80
7152 Boundary 2003   1 18 14.87
34
1
7632 Architecture   18 22.92
7851 Stacks of Zippy   1 18 17.37
34
34
8848 Herbicide   18 41.56
9513 Game   18 32.73
11712 Red Cross Hospital   1 18 24.77
34
1
11901 Paths in a Tree   1 18 32.14
1
34
14035 Winter Crush   18 32.46
15165 primes triangle (II)   2 18 31.62
39
17
15551 Do You Even Lift   2 18 38.35
23
28
15572 Garden   -1 18 28.41
16956 Encoded Coordinates   1 18 32.39
17
34
21966 Ricochet Robots   3 18 53.33
23
12
21970 Safe Secret   18 42.00
23530 Suffixes   1 18 24.68
17
17
25396 A Terribly Grimm Problem   2 18 30.77
28
28
25819 DOMINO   1 18 29.58
34
34
33963 Ada and Palace Game   1 18 31.91
34301 Map Exploration Cost   2 18 38.26
17
17
34370 Incomplete hierarchy   18 10.55
1
17
35283 Full Sleigh   5 18 28.77
13
17
36532 Friendship   4 18 40.00
34
17
41212 Bankomat   1 18 30.56
1
1
41215 Diamonds   18 17.19
1270 Paint By Numbers   19 19.62
2276 Partitions   1 19 10.76
34
34
3309 Bulletin Board   19 20.80
5016 Guernica   19 51.06
6720 Paper Fold   19 13.01
7023 Cookies   19 36.36
7740 Fence   19 29.23
8449 Plotting functions (variation)   1 19 22.35
17
17
9971 Adventurous Chess Masters   19 22.32
10574 Soccer Ceremony   19 39.44
11407 Tied Down   19 38.33
11540 Training   19 43.14
12240 Multinomial numbers   1 19 39.76
34
17
13948 Disjoint Subtrees   19 48.80
34
34
15568 Fire Extinguishers   19 45.28
15575 Kangaroos   1 19 28.95
15671 Product of factorials (medium)   1 19 30.23
34
1
16177 Hashcodes and primes   2 19 44.26
17
17

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