list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
23842 Professor Farouk Question   17 575 33.48
10
7
18408 The Valentine Confession   9 572 28.24
15
21
4180 Pizza Location   2 571 18.49
31
17
9587 The Prime conjecture   5 569 34.34
9
9
15849 Find the Treasure   10 568 23.35
13
10
8184 Bureaucracy   2 565 29.64
6
17
13990 Web islands   18 565 33.14
15
16
16245 Living with Courage   19 565 37.37
10
13
245 Square Root   4 564 13.04
20
10
15620 Postering   14 564 32.09
17
21
962 Intergalactic Map   2 563 23.39
19
28
18056 Robert Langdon & Cipher   2 563 50.46
1
13
1713 Funny scales   12 560 30.50
17
16
1723 Bee Maja   3 556 53.51
17
21
13838 Mosty! Find Gn   5 556 49.54
9
24
688 Toy Cars   1 554 17.65
9
17
967 Parking Bay   3 551 49.17
12
23
4941 Integer Factorization (20 digits)   8 550 55.87
34
30
9577 Dynamic Tree Connectivity   12 549 27.92
29
28
11103 PrimeFactorofLCM   5 548 25.50
17
17
27321 Increasing numbers   17 547 23.68
13
19
28404 Ada and Field   33 547 25.75
21
17
8139 Chairs   8 544 37.64
12
20
1183 Accomodate the palace   4 543 52.35
17
34
28604 Sinha and Eggs   6 542 37.10
5
10
4987 Goal for Raúl   6 541 29.89
12
12
7191 Hexagonal Board   6 540 62.07
12
9
36 Secret Code   6 536 36.74
17
17
15431 Farmer Cream   3 536 53.53
1
6
18297 Problem4   24 536 32.17
18
20
676 Sorting is not easy   9 535 39.62
19
32
7976 Sum the Square   7 534 25.79
12
15
14844 All Your Base   12 534 29.91
11
11
12462 Boggle Scoring   7 533 47.76
5
5
12726 XOR Game   5 532 43.87
11
13
7264 Digital LED Number   7 531 28.81
14
4
12400 Johnnys Empire   1 531 43.20
9
9
371 Boxes   529 35.61
1
26
1440 Use of Function Arctan   4 529 29.16
5
26
1825 Free tour II   1 528 14.07
17
34
3394 Lagrange’s Four-Square Theorem   4 527 45.84
1
9
4480 Chaos Strings   14 526 29.97
17
22
1024 Complete Chess Boards   2 525 54.56
17
20
24191 Eagle and Dogs   18 525 17.60
21
28
21692 CURD PRODUCERS   6 521 42.01
15
11
3763 George   15 520 52.57
19
18
3924 Filchs Dilemna   7 519 65.64
9
17
24999 1807   10 519 38.42
15
18
1487 Query on a tree III   518 17.01
1801 Drink, on Ice   1 518 43.00
9
9

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