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Problems

Strings
Difficulty
Sort by
1311
Fibonacci String
Medium
1313
Almost palindromes
Hard
1340
Diamond
Very easy
1341
LC-Display
Very easy
1342
Periodic Strings
Very easy
1343
Bad Substring
1344
Personal files
Very easy
1350
Deoxyribonucleic acid
Easy
1407
We are of one blood, you and I
Hard
1495
Substring
Medium
1498
KMP
1500
Cyclic string
Easy
1652
Polynomial
Easy
1653
Brackets
Easy
1716
Getting Chorded
Easy
1717
OULIPO
Very easy
1718
Разворот префиксов
Easy
1730
DNA Analysis
Medium
1758
A + B Problem
Hard
1775
Boundary Spell
Medium
1778
The Bank Cards
Easy
1792
Password Search
Easy
1896
Prince or Impostor
Very easy
1986
Masha and the palindrome
Medium
1999
Palindrome
Hard
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