list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1440 Use of Function Arctan   4 533 29.01
5
26
15560 Help the old King   15 532 37.33
15
15
1024 Complete Chess Boards   2 530 54.75
17
20
3394 Lagrange’s Four-Square Theorem   4 530 45.99
1
9
4480 Chaos Strings   14 529 30.04
17
22
21360 Suffix Equal Prefix   5 529 29.08
13
13
21692 CURD PRODUCERS   6 528 42.10
15
11
14887 Good Travels   29 525 29.08
26
24
3924 Filchs Dilemna   7 523 65.43
9
17
3763 George   15 522 52.29
19
18
24999 1807   10 522 38.53
15
18
6477 Bowling   3 521 28.59
8
11
1801 Drink, on Ice   1 519 42.81
9
9
2143 Dependency Problems   4 518 38.91
17
13
8093 Sevenk Love Oimaster   1 517 23.45
26
26
27039 Assembly line   17 517 24.63
17
14
1774 All Discs Considered   10 515 28.41
26
22
16549 Query on a tree VI   10 514 19.40
36
26
8596 Wood, Axe and Grass   4 513 57.55
17
11
10111 Nonnegative Partial Sums   15 513 29.88
19
19
11181 Build the Tower   2 513 41.33
26
26
28740 Try to complete   21 513 25.77
23
23
7 The Bulk!   6 512 15.52
30
24
8284 Weighted Sum   6 511 17.85
9
13
21169 Balanced base-3   7 511 52.01
9
7
373 Greedy island   6 510 33.48
26
26
11895 DONALDO   7 509 24.86
11
13
7001 Visible Lattice Points   1 508 28.84
17
34
21853 Rivals   23 506 33.70
17
24
10446 Sicrano   4 504 23.54
17
13
5151 Alice’s Cube   8 503 28.96
24
21
34011 Jalil Got TLE   12 503 25.61
6
8
17707 Constructible Regular Polygons   5 502 55.73
8
8
7426 Imperial Units   3 500 45.43
3
12
10292 Shell game   -1 499 19.09
150 Where to Drink the Plonk?   1 498 34.78
196 Musketeers   2 498 30.30
17
34
34 Run Away   2 497 21.42
26
34
14629 Play with Binary Numbers   4 497 39.94
8
9
4318 Catch Fish   11 496 32.91
21
26
82 Easy Problem   4 495 34.77
17
9
741 Steady Cow Assignment   5 493 31.68
20
29
428 Particular Palindromes   5 492 32.02
22
24
10622 DIFERENCIJA   8 491 43.10
21
23
16034 Minimum Number   5 491 16.04
11
1
26719 Gutibazi   10 491 47.49
3
6
3363 Svada   10 490 28.85
9
15
15563 Check the string Powers   7 488 28.86
17
17
19957 GETTING AN AP   5 488 36.75
8
12
35669 Consecutive Letters   7 488 26.61
17
20

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