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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
14924 King Graffs Tolls   4 35 40.00
26
26
14923 King Graffs Defense   20 484 25.48
26
30
10589 King   70 29.77
13382 Kindergarten Painting Competition   40 39.13
11769 Kind and gently   106 53.23
17
17
25482 Kimetto Kipsang and Kipchoge   1 44 21.48
34
34
19148 Kill them All   3 129 23.60
28
34
7760 Kids’ Wishes   1 95 31.93
34
1
19334 Khaolin Temple   2 24 27.22
26
26
19174 Khairy and Gold Alloys   7 148 47.46
11
11
34909 Keyword Finder   105 29.60
6
4
26212 Keyur and Mohib Tree   15 218 40.63
8
12
15573 Keyboard   16 28.17
2053 Key Task   37 1188 31.78
24
22
15498 Kawigi quote   1 25 32.11
34
34
22393 KATHTHI   58 2214 33.42
16
17
18905 Kapti and Balu   1 41 32.70
17
17
25179 Kaos   9 282 40.67
19
25
15575 Kangaroos   1 20 23.78
10522 K12-OE Numbers   7 238 50.18
21
21
10517 K12-Generating Big Numbers II   1 83 45.02
26
17
10515 K12-Combinations   5 412 28.02
5
17
10519 K12-Bored of Suffixes and Prefixes   3 96 43.49
26
26
10514 K12 - Building Construction   60 2072 26.48
12
16
36577 K-transfer journey   4 27 39.00
21
26
18939 K-th smallest number   5 219 13.94
13
17
3946 K-th Number   245 5839 35.44
25
27
23776 K-Query Online   86 2060 40.13
20
23
3266 K-query   248 6127 25.55
21
25
412 K-path cover   186 20.48
1
50
2128 K-In-A-Row   6 446 33.76
17
11
32900 K-dominant array   3 383 31.59
30
30
36936 K-Divisors   3 18 17.05
39
39
26348 K NUMBERS   11 285 38.44
9
9
2733 K Equal Digits   16 13.65
2144 K Edge-disjoint Branchings   9 12.35
26954 k Alternating Sum   11 81 31.75
23
26
2180 Justice League   83 48.97
8625 Just The Simple Fax   1 80 42.15
34
17
11496 Just the distance   22 12.75
17
17
40084 Just Primes II   7 29 38.36
34
30
40083 Just Primes   11 124 29.90
15
17
31341 Just One Swap   11 185 28.68
11
12
7404 Just on Time   2 16 35.38
17
17
12150 Just Next !!!   75 6670 23.13
12
11
11405 Just Like the Good Old Days   88 40.78
9494 Just Add It   76 6466 46.86
11
10
34117 Just a Palindrome   1 29 8.76
34
34
5150 Junk-Mail Filter   149 22.56
21671 Jumppy and the Grid   4 63 33.10
21
21

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