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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
740 Treats for the Cows   261 8534 42.64
13
14
27 Sorting Bank Accounts   53 8801 40.39
11
6
4560 The Double HeLiX   147 8857 37.57
12
10
97 Party Schedule   251 8859 36.19
14
16
31 Fast Multiplication   48 8893 20.79
15
12
345 Mixtures   256 8916 36.34
17
21
9861 Hotels Along the Croatian Coast   211 8939 41.68
10
12
328 Bishops   83 8947 32.00
14
7
7406 Beehive Numbers   38 9189 58.89
5
9
10582 subarrays   215 9351 34.30
11
13
7733 Happy Numbers I   89 9368 53.37
8
8
206 Bitmap   246 9483 28.11
15
16
5449 Seinfeld   188 9524 40.06
8
11
7742 Onotole needs your help   138 10094 41.02
4
11
1841 Prime Path   336 10456 57.97
19
18
1021 Aibohphobia   309 10645 36.19
12
17
8002 Horrible Queries   397 10892 29.68
19
18
32 A Needle in the Haystack   193 11092 38.25
15
14
1716 Can you answer these queries III   234 11352 43.18
22
21
4141 Euler Totient Function   145 11688 38.66
8
11
1419 A Game with Numbers   118 12025 61.55
3
10
14930 Princess Farida   274 12062 26.92
7
10
4408 Build a Fence   38 12280 44.80
4
5
7424 Girls and Boys   91 12287 46.93
4
10
379 Ambiguous Permutations   71 12339 59.57
4
5
3923 Philosophers Stone   308 12698 43.47
10
11
2157 Anti-Blot System   104 12938 45.22
10
5
11063 AP - Complete The Series (Easy)   47 12996 37.21
3
6
302 Count on Cantor   155 13022 61.29
13
14
3267 D-query   454 13043 28.07
19
23
1724 Counting Triangles   69 13110 34.03
7
21
6219 Edit distance   306 13146 33.11
12
18
10509 Cards   78 13469 34.02
4
4
3375 Stamps   28 13737 41.71
5
3
1043 Can you answer these queries I   567 13791 18.76
25
24
2727 Army Strength   37 14519 41.21
4
4
3377 A Bug’s Life   342 15471 27.48
12
13
11814 Eko   171 15692 26.65
13
13
6256 Inversion Count   533 17341 31.76
16
18
9948 Will it ever stop   119 17829 43.05
4
9
902 Hangover   56 17830 62.80
3
3
95 Street Parade   318 18317 29.02
14
11
1030 Triple Fat Ladies   106 19117 51.77
4
12
1437 Longest path in a tree   406 19629 39.23
14
15
5 The Next Palindrome   452 20220 10.75
25
18
2148 Candy III   54 20435 25.32
9
5
1436 Is it a tree   337 20666 35.22
10
10
394 Alphacode   579 22401 27.29
15
15
54 Julka   163 23157 27.45
19
6
400 To and Fro   90 23335 55.54
14
7

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