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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
2995
165
1158
Censored!
NEERC 2001 Northern Subregional
981
505
1177
Like Comparisons
USU Personal Contest 2002
393
1244
1269
Obscene Words Filter
USU Championship 2003
595
846
1297
Palindrome
Spring School Contest 2004
6268
82
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3756
138
1393
Average Common Prefix
437
1157
1423
String Tale
Timus Top Coders: First Challenge
2962
171
1486
Equal Squares
USU Championship 2006
757
633
1517
Freedom of Choice
Timus Top Coders: Third Challenge
1947
245
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
2394
187
1677
Monkey at the Keyboard
Petrozavodsk Summer 2008. USU Contest
248
1591
1684
Jack's Last Word
USU Personal Contest 2009
1531
264
1706
Cipher Message 2
Ural Championship 2009
593
669
1713
Key Substrings
NEERC 2009 Eastern Subregional
607
629
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6278
62
1732
Ministry of Truth
USU Championship 2009
839
455
1799
Sasha and swag strings
36
5011
1835
Swamp Doctor
Ural Championship 2011
98
3179
1842
Local Roots
Petrozavodsk Summer 2010. USU Contest
44
6161
1937
Davy Jones’s Organ
Ural FU Championship 2012
242
1199
1954
Five Palindromes
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
65
3823
1960
Palindromes and Super Abilities
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
655
431
2040
Palindromes and Super Abilities 2
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
278
873
2044
31 Palindromes
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
86
2618
2045
Richness of words
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
530
465
2057
Non-palidromic cutting
Palindromic Contest
51
3863
2058
100500 palidnromes
Palindromic Contest
124
1758
2059
Not common palindromes
Palindromic Contest
147
1501
2060
Subpalindrome pairs
Palindromic Contest
354
647
2061
OEIS A216264
Palindromic Contest
55
3625
2077
Reductions
Qualification of Eastern Subregional 2015
19
7625
2118
Cipher Message 4
Petrozavodsk Summer 2018. umnik_team Contest
90
1486
2131
Open Cup
Later is better than never
15
5765
2137
Dynamic string complexity
Later is better than never
13
6266
2168
Runes in the Field
Ural School Programming Contest 2022
10
3156
2193
Old Barabarian Rap
ICPC Ural Regional Contest Qualifier 2022
7
2044
2197
Work is not a wolf; a wolf is to walk
ICPC Ural Regional Contest Qualifier 2024
5
2327
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