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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
740 Treats for the Cows   261 8543 42.64
13
14
27 Sorting Bank Accounts   53 8820 40.34
11
6
97 Party Schedule   251 8865 36.19
14
16
4560 The Double HeLiX   147 8873 37.57
11
10
31 Fast Multiplication   48 8916 20.80
15
12
345 Mixtures   256 8929 36.30
17
21
328 Bishops   83 8952 32.00
14
7
9861 Hotels Along the Croatian Coast   211 8952 41.70
10
12
7406 Beehive Numbers   38 9192 58.89
5
9
10582 subarrays   215 9362 34.31
11
13
7733 Happy Numbers I   89 9372 53.37
8
8
206 Bitmap   246 9496 28.13
15
16
5449 Seinfeld   188 9526 40.05
8
11
7742 Onotole needs your help   138 10104 41.04
4
11
1841 Prime Path   337 10467 57.96
19
18
1021 Aibohphobia   309 10653 36.19
12
17
8002 Horrible Queries   397 10938 29.71
19
18
32 A Needle in the Haystack   193 11122 38.26
15
14
1716 Can you answer these queries III   235 11467 43.27
22
21
4141 Euler Totient Function   145 11726 38.69
8
11
1419 A Game with Numbers   118 12038 61.54
3
10
14930 Princess Farida   274 12075 26.93
7
10
4408 Build a Fence   38 12284 44.79
4
5
7424 Girls and Boys   91 12292 46.93
4
10
379 Ambiguous Permutations   71 12340 59.57
4
5
3923 Philosophers Stone   308 12717 43.49
10
11
2157 Anti-Blot System   104 12939 45.22
10
5
11063 AP - Complete The Series (Easy)   47 12997 37.21
3
6
302 Count on Cantor   155 13026 61.28
13
14
1724 Counting Triangles   69 13118 34.03
7
21
6219 Edit distance   306 13156 33.12
12
18
3267 D-query   456 13167 28.15
19
23
10509 Cards   78 13474 34.02
4
4
3375 Stamps   28 13745 41.70
5
3
1043 Can you answer these queries I   567 13864 18.80
25
24
2727 Army Strength   38 14522 41.22
4
4
3377 A Bug’s Life   342 15508 27.49
12
13
11814 Eko   171 15781 26.68
13
13
6256 Inversion Count   533 17417 31.79
16
18
902 Hangover   56 17836 62.81
3
3
9948 Will it ever stop   119 17851 42.99
4
9
95 Street Parade   318 18348 29.03
14
11
1030 Triple Fat Ladies   106 19128 51.78
4
12
1437 Longest path in a tree   407 19680 39.28
14
15
5 The Next Palindrome   452 20284 10.77
25
18
2148 Candy III   54 20439 25.32
9
5
1436 Is it a tree   338 20698 35.23
10
10
394 Alphacode   579 22442 27.29
15
15
54 Julka   163 23189 27.46
19
6
400 To and Fro   90 23345 55.55
14
7

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