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Problems
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Difficulty
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1609
The number of specified digits
Very easy
1611
Reverse a substring
Very easy
1622
Honey barrels
Very easy
1624
Day after tomorrow
Easy
1625
Judging Olympia
Easy
1627
Rotating Rings
Medium
1628
A Tale from the Dark Side of the Moon
Easy
1632
The Writers' Club
Easy
1633
Moving Sticks
Very hard
1634
Johnny Hates Math
Easy
1644
Joke
Medium
1647
Reset bits
Easy
1650
Decoding Task
Very easy
1658
Factorial
Very easy
1674
Air conditioner
Very easy
1675
Square Digital Root
Easy
1677
Snake
Easy
1678
Gifts
Easy
1689
Durak game
Very easy
1692
Numerical Intervals
Easy
1696
The magic number 23
Very easy
1703
Left recursion
Very easy
1739
A + B
Very easy
1776
Rails
Very easy
1785
Patterns
Easy
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