list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
33 Trip   17 2071 26.40
25
16
39 Piggy-Bank   140 8246 35.53
14
16
63 Square Brackets   92 3887 56.74
14
18
64 Permutations   98 4410 52.18
12
20
66 Cross-country   38 4115 64.54
11
12
97 Party Schedule   251 8955 36.24
14
16
108 Decoding Morse Sequences   7 973 25.04
24
17
130 Rent your airplane and make money   88 3387 28.64
18
17
137 Partition   17 788 36.72
17
20
151 The Courier   38 1069 35.62
22
23
154 Sweet and Sour Rock   80 3447 51.14
14
17
181 Scuba diver   99 3909 26.08
18
18
207 Three-coloring of binary trees   16 887 36.10
20
17
237 Sums in a Triangle   -13 3593 42.51
28
10
277 City Game   16 1334 39.33
20
21
345 Mixtures   256 9210 36.23
17
21
346 Bytelandian gold coins   546 26006 25.22
11
12
365 Phidias   25 1225 47.22
13
21
388 Menu   7 352 19.00
25
16
394 Alphacode   580 22963 27.42
15
15
423 Assignments   244 4834 33.69
18
22
428 Particular Palindromes   5 501 32.20
22
24
676 Sorting is not easy   9 542 39.75
19
32
703 Mobile Service   7 1167 23.12
23
23
740 Treats for the Cows   261 8624 42.73
13
14
757 Thermal Luminescence   131 37.64
1
1
1021 Aibohphobia   310 10727 36.22
12
17
1027 Fool the Police   25 1655 27.12
18
23
1031 Up Subsequence   2 734 32.66
15
10
1329 Matrix   6 414 17.21
28
26
1391 Summing to a Square Prime   16 1428 53.97
12
17
1459 The Secret of an Aerolite   8 265 43.62
24
26
1475 Play with Digit Seven   3 136 38.22
28
12
1702 Cleaning Robot   45 1592 34.21
27
19
1703 ACM (ACronymMaker)   52 1097 29.71
26
21
1710 Two Ends   115 3789 41.58
18
17
1847 No Change   37 1684 36.16
11
14
1871 Making A Budget   15 874 48.58
12
15
2007 Another Very Easy Problem! WOW!!!   17 792 39.04
13
28
2127 Rain   4 438 40.61
20
15
2176 Finding Seats   2 223 14.99
34
34
2416 Distinct Subsequences   94 3779 36.34
12
22
2530 Tiling a Grid With Dominoes   60 2440 64.86
16
24
2815 Increasing Subsequences   53 2184 28.17
15
22
2816 Common Subsequences   5 222 28.72
26
34
2856 Help Bob   6 278 31.72
21
23
2884 Martian Mining   89 2327 47.79
13
22
3379 String Shuffle   7 400 65.69
17
14
3380 Tourist   28 1167 37.75
19
31
3385 Yoda Goes Palindromic !   3 586 30.53
17
17

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