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Problems

Strings
Difficulty
Sort by
6835
Infiltration
6907
Encrypted SMS
Very easy
6957
Nonogram
Easy
7111
Terusky
Very easy
7199
Cryptogram
Very hard
7388
A Jaw-dropping Problem
Very easy
7440
Easy
Easy
7445
Palindrome
Very hard
7490
Substrings
Very hard
7530
Repeated Substrings
7619
Hash Code Hacker
7672
Divisible by 3
Easy
7788
DNA Decoding
8177
Ramp Number
Medium
8223
Prefixes of a substring
Very easy
8224
Suffixes of a substring
Very easy
8225
Sample in the text
Very easy
8226
Naive Algorithm (First Occurrence)
Very easy
8230
Facets of the line.
Very easy
8231
Line block
Very easy
8232
Two lines
Easy
8233
Naive Algorithm (All Occurrences)
Very easy
8251
Concatenation of Three Palindromes
Hard
8268
Retweet twinter
Medium
8295
Fibonacci strings generation
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