list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
21853 Rivals   23 505 33.67
17
24
8284 Weighted Sum   6 508 17.80
9
13
10111 Nonnegative Partial Sums   13 508 29.78
19
17
5271 A Coin Game   4 510 30.70
21
30
7826 Tree Isomorphism   6 510 22.35
21
26
11181 Build the Tower   2 511 41.24
26
26
8596 Wood, Axe and Grass   4 512 57.51
17
11
1774 All Discs Considered   10 513 28.52
26
22
27039 Assembly line   17 513 24.56
17
14
3734 Periodni   2 514 34.97
26
34
2143 Dependency Problems   4 517 39.00
17
13
15560 Help the old King   15 517 37.28
15
15
1801 Drink, on Ice   1 518 43.00
9
9
6477 Bowling   3 518 28.50
8
11
24999 1807   10 519 38.42
15
18
3763 George   15 520 52.54
19
18
3924 Filchs Dilemna   7 520 65.27
9
17
21692 CURD PRODUCERS   6 524 41.99
15
11
1024 Complete Chess Boards   2 526 54.60
17
20
4480 Chaos Strings   14 526 29.97
17
22
3394 Lagrange’s Four-Square Theorem   4 527 45.84
1
9
7264 Digital LED Number   7 531 28.81
14
4
12400 Johnnys Empire   1 531 43.20
9
9
1440 Use of Function Arctan   4 532 29.04
5
26
1825 Free tour II   1 532 14.07
17
34
12462 Boggle Scoring   7 533 47.76
5
5
12726 XOR Game   5 533 43.87
11
13
16185 Mining your own business   4 533 19.60
34
34
14844 All Your Base   12 534 29.91
11
11
371 Boxes   535 35.70
1
26
7976 Sum the Square   7 535 25.81
12
15
676 Sorting is not easy   9 536 39.66
19
32
1487 Query on a tree III   536 17.35
15431 Farmer Cream   3 536 53.45
1
6
18297 Problem4   24 536 32.17
18
20
24191 Eagle and Dogs   18 536 17.58
21
28
32943 Ada and Unstable Sort   9 537 41.06
5
9
36 Secret Code   6 539 36.55
17
17
7191 Hexagonal Board   6 541 62.11
12
9
4987 Goal for Raúl   6 542 29.93
12
12
28604 Sinha and Eggs   6 544 37.15
5
10
1183 Accomodate the palace   4 545 52.34
17
34
8139 Chairs   8 546 37.70
12
20
27321 Increasing numbers   17 550 23.67
13
19
28404 Ada and Field   33 550 25.75
21
17
967 Parking Bay   3 552 49.21
12
23
4941 Integer Factorization (20 digits)   8 553 55.86
34
30
9577 Dynamic Tree Connectivity   12 556 27.99
29
28
11103 PrimeFactorofLCM   5 556 25.63
17
17
13838 Mosty! Find Gn   5 556 49.54
9
24

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