list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1754 Divisor Summation (Hard)   32 1317 15.64
22
20
32745 Ada and Harvest   20 286 27.45
22
21
30734 Ada and Orange Tree   30 394 23.40
22
21
26 Build the Fence   37 2250 28.08
22
17
3405 Almost Shortest Path   79 1707 31.31
22
21
2817 Distinct Increasing Subsequences   9 794 24.57
22
26
1442 Strange Food Chain   19 919 19.48
22
25
3107 Odd Numbers of Divisors   27 1068 18.41
22
22
47 Skyscraper Floors   8 291 12.64
22
22
428 Particular Palindromes   5 499 32.16
22
24
1704 Countdown   302 25.36
22
8
3928 Counting Digits   7 1279 46.13
22
26
12366 Cantor   9 207 46.64
22
22
15256 Partition function (EASY)   8 99 39.36
22
27
17732 Salary Management   10 234 19.18
22
24
22412 Divisors of factorial (hard)   9 186 46.73
22
22
30394 Prime is fun   8 85 35.31
22
24
3273 Order statistic set   160 3389 26.58
22
20
1716 Can you answer these queries III   236 11909 43.62
22
21
32245 Apoorv and Maximum Inversion   21 148 32.97
22
24
4053 Card Sorting   26 693 43.64
22
27
4555 Einbahnstrasse   2 488 26.50
22
9
7019 Zig-Zag rabbit   5 595 36.88
22
19
11476 Weird Points   11 184 27.86
22
27
26928 The Crossover   9 104 16.83
22
16
151 The Courier   38 1066 35.50
22
23
4206 Fast Maximum Matching   32 2065 29.39
22
19
104 Highways   2 808 20.46
23
28
122 Voracious Steve   2 272 29.87
23
23
134 Phony Primes   1 181 19.16
23
23
291 Cube Root   1 255 16.68
23
15
703 Mobile Service   7 1132 23.09
23
23
707 Triple-Free Sets   2 201 39.08
23
34
1465 On the Way to Find Chris   2 60 14.98
23
23
1712 Permalex   -1 172 19.39
23
17
1771 Yet Another N-Queen Problem   2 325 24.51
23
28
2058 Reaux! Sham! Beaux!   4 662 32.89
23
6
2175 Emoticons   3 331 22.01
23
28
2526 Decoding   9 1040 36.50
23
15
2916 Can you answer these queries V   52 2827 26.59
23
24
3007 Oil Company   3 177 25.03
23
28
3008 Finding the Top RPS Player   1 183 65.90
23
28
3253 Electronic Document Security   3 155 60.94
23
6
3484 Crossbits   3 99 15.25
23
15
3752 JEDNAKOST   12 598 18.41
23
21
4197 Dominoes   4 123 22.93
23
23
4227 "Shortest" pair of paths   3 214 41.11
23
17
4413 Gem   3 98 39.83
23
12
4523 Binomial Coefficients   209 41.49
23
12
4839 Ant   3 193 38.79
23
28

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