list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
33 Trip   18 1927 25.92
25
16
39 Piggy-Bank   139 8056 35.44
14
16
63 Square Brackets   92 3832 56.93
14
18
64 Permutations   97 4259 51.99
12
20
66 Cross-country   38 4049 64.54
11
12
97 Party Schedule   250 8780 36.11
14
16
108 Decoding Morse Sequences   7 788 24.27
24
17
130 Rent your airplane and make money   88 3332 28.62
18
17
137 Partition   17 780 36.68
17
20
151 The Courier   37 1028 35.83
22
23
154 Sweet and Sour Rock   78 3389 51.35
14
17
181 Scuba diver   98 3774 25.94
18
18
207 Three-coloring of binary trees   16 873 35.92
20
17
237 Sums in a Triangle   -13 3566 42.38
28
10
277 City Game   16 1266 38.79
20
21
345 Mixtures   254 8693 36.49
17
21
346 Bytelandian gold coins   541 25516 25.11
11
12
365 Phidias   25 1211 47.22
13
21
388 Menu   7 347 18.89
25
16
394 Alphacode   574 21900 27.18
15
15
423 Assignments   240 4595 33.52
18
21
428 Particular Palindromes   5 491 32.00
23
28
676 Sorting is not easy   9 535 39.62
19
32
703 Mobile Service   6 874 21.17
24
28
740 Treats for the Cows   260 8456 42.59
13
14
757 Thermal Luminescence   121 39.26
1021 Aibohphobia   306 10567 36.16
12
17
1027 Fool the Police   25 1636 26.97
18
23
1031 Up Subsequence   2 725 32.54
17
12
1329 Matrix   6 409 17.21
28
26
1391 Summing to a Square Prime   16 1415 54.06
12
17
1459 The Secret of an Aerolite   8 259 43.46
24
26
1475 Play with Digit Seven   3 120 36.36
34
14
1702 Cleaning Robot   45 1525 34.36
28
20
1703 ACM (ACronymMaker)   52 1069 29.79
26
21
1710 Two Ends   115 3752 42.26
18
17
1847 No Change   37 1669 36.23
11
14
1871 Making A Budget   15 864 48.55
13
15
2007 Another Very Easy Problem! WOW!!!   17 758 39.00
13
28
2127 Rain   3 432 40.34
17
14
2176 Finding Seats   2 220 14.87
34
34
2416 Distinct Subsequences   93 3685 36.19
12
22
2530 Tiling a Grid With Dominoes   57 2381 65.03
15
23
2815 Increasing Subsequences   52 2142 28.18
14
22
2816 Common Subsequences   5 217 28.61
26
34
2856 Help Bob   6 273 31.92
21
23
2884 Martian Mining   87 2265 47.78
13
22
3379 String Shuffle   7 388 65.83
17
14
3380 Tourist   28 1017 38.46
19
31
3385 Yoda Goes Palindromic !   3 581 30.45
17
17

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