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Problem set. String Algorithms Problems
Solved problems:
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ID
Title
Source
Authors
Difficulty
1102
Strange Dialog
Tetrahedron Team Online Contest May 2001
2846
176
1158
Censored!
NEERC 2001 Northern Subregional
997
504
1177
Like Comparisons
USU Personal Contest 2002
398
1246
1269
Obscene Words Filter
USU Championship 2003
603
846
1297
Palindrome
Spring School Contest 2004
6334
82
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3788
138
1393
Average Common Prefix
442
1158
1423
String Tale
Timus Top Coders: First Challenge
3016
170
1486
Equal Squares
USU Championship 2006
780
623
1517
Freedom of Choice
Timus Top Coders: Third Challenge
1996
242
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
2441
186
1677
Monkey at the Keyboard
Petrozavodsk Summer 2008. USU Contest
254
1586
1684
Jack's Last Word
USU Personal Contest 2009
1548
266
1706
Cipher Message 2
Ural Championship 2009
600
675
1713
Key Substrings
NEERC 2009 Eastern Subregional
618
631
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6353
62
1732
Ministry of Truth
USU Championship 2009
854
457
1799
Sasha and swag strings
39
4921
1835
Swamp Doctor
Ural Championship 2011
99
3232
1842
Local Roots
Petrozavodsk Summer 2010. USU Contest
46
6105
1937
Davy Jones’s Organ
Ural FU Championship 2012
246
1217
1954
Five Palindromes
Petrozavodsk Winter 2013. Ural FU Contest
69
3753
1960
Palindromes and Super Abilities
Petrozavodsk Winter 2013. Ural FU Contest
673
434
2040
Palindromes and Super Abilities 2
Petrozavodsk Summer 2014. Ural FU Contest
294
861
2044
31 Palindromes
Petrozavodsk Summer 2014. Ural FU Contest
92
2565
2045
Richness of words
Petrozavodsk Summer 2014. Ural FU Contest
545
471
2057
Non-palidromic cutting
Palindromic Contest
58
3620
2058
100500 palidnromes
Palindromic Contest
132
1733
2059
Not common palindromes
Palindromic Contest
152
1519
2060
Subpalindrome pairs
Palindromic Contest
368
651
2061
OEIS A216264
Palindromic Contest
58
3620
2077
Reductions
NEERC 2015 Eastern Subregional Qualifier
23
7026
2118
Cipher Message 4
Petrozavodsk Summer 2018. umnik_team contest
107
1370
2131
Open Cup
Later is better than never
18
5568
2137
Dynamic string complexity
Later is better than never
16
5996
2168
Runes in the Field
Ural School Programming Contest 2022
10
3800
2193
Old Barabarian Rap
ICPC Ural Regional Contest Qualifier 2022
16
1847
2197
Work is not a wolf; a wolf is to walk
ICPC Ural Regional Contest Qualifier 2024
11
2294
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