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Problems

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Difficulty
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4358
T-shirter
Easy
4388
Meeting place can not be changed
Easy
4432
Tom Sawyer and His Friends
Easy
4436
Lexicographic order
4450
Dominant Queens
Easy
4471
Rectangles
4514
Sorting of Railcars - A
Medium
4523
A New Word in Advertising
4525
Boustrophedon
Medium
4526
Ichthyology
Medium
4557
Lonely king
Very easy
4573
Quadratic Permutation High
Easy
4574
Quadratic Permutation Junior
Very easy
4609
Quiz
Very easy
4627
Hexagon
4628
The Bermuda Triangle
4635
The Programmer`s Hex
Very hard
4651
A lock in the form of a mini-game
4676
Number of palindromes
Medium
4684
Lucky ticket
Very hard
4688
Median Weight Bead
4728
Palindrome Search
Very easy
4756
The Last Digit
Easy
4815
All permutations of given length
Very easy
4828
Mumba-Yumba
Very easy
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