list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
16185 Mining your own business   4 583 20.20
34
34
20172 Divisiblity by 3   11 583 30.52
14
10
3385 Yoda Goes Palindromic !   3 581 30.44
17
17
9577 Dynamic Tree Connectivity   12 581 28.02
29
28
3734 Periodni   2 580 36.98
26
34
9070 Lightning Conductor   3 579 33.02
9
17
16248 Clones   6 579 44.09
3
4
245 Square Root   4 577 12.96
20
10
11103 PrimeFactorofLCM   5 577 25.68
17
17
23842 Professor Farouk Question   17 576 33.52
10
7
13990 Web islands   18 575 32.63
15
16
24191 Eagle and Dogs   18 575 17.85
21
28
18408 The Valentine Confession   9 574 28.30
15
21
4180 Pizza Location   2 573 18.51
31
17
4941 Integer Factorization (20 digits)   8 570 55.63
34
30
9587 The Prime conjecture   5 570 34.37
9
9
16245 Living with Courage   20 569 37.43
10
13
8184 Bureaucracy   2 565 29.64
6
17
962 Intergalactic Map   2 564 23.38
19
28
10606 Balanced Numbers   9 563 27.07
23
17
18056 Robert Langdon & Cipher   2 563 50.46
1
13
967 Parking Bay   3 560 48.99
12
23
1713 Funny scales   12 560 30.45
17
16
28404 Ada and Field   33 559 25.49
21
17
1723 Bee Maja   3 558 53.42
17
21
13838 Mosty! Find Gn   5 557 49.60
9
24
1487 Query on a tree III   556 17.71
1825 Free tour II   1 556 14.23
17
34
27321 Increasing numbers   17 554 23.61
13
19
7826 Tree Isomorphism   8 553 22.99
19
28
7976 Sum the Square   7 552 26.09
12
15
32943 Ada and Unstable Sort   9 550 41.03
5
9
8139 Chairs   8 549 37.65
12
20
15637 Mr Youngs Picture Permutations   1 549 38.87
17
17
1183 Accomodate the palace   4 548 52.46
17
34
12005 Grass Planting   11 547 44.94
29
19
36 Secret Code   6 546 36.06
17
17
5271 A Coin Game   4 546 31.75
21
30
28604 Sinha and Eggs   6 546 37.19
5
10
4987 Goal for Raúl   6 543 29.99
12
12
371 Boxes   542 35.82
1
26
7191 Hexagonal Board   6 541 62.11
12
9
676 Sorting is not easy   9 538 39.70
19
32
12462 Boggle Scoring   7 537 47.96
5
5
12726 XOR Game   5 536 43.81
11
13
14844 All Your Base   12 536 29.96
11
11
15431 Farmer Cream   3 536 53.45
1
6
18297 Problem4   24 536 32.35
18
20
12400 Johnnys Empire   1 535 43.36
9
9
7264 Digital LED Number   7 534 28.92
14
4

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