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Problems

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Difficulty
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5051
Fast Multiplication
5052
Check the bit
Very easy
5053
Division by a digit
Very easy
5054
Is it a leap year?
Very easy
5055
Number of days since the beginning of the era
Easy
5056
Beautiful dates
Easy
5057
Spiral
5058
Sequence of brackets
Very easy
5059
Two minimums
Very easy
5060
Reverse Polish notation
Very easy
5061
Plates of Omnipotence
5062
Maximum palindrome
Very easy
5063
Uruk-Hai
Very easy
5064
Magic constant
Very easy
5065
Explosiveness 2
Easy
5066
The quotient and remainder by a digit
Very easy
5067
n Div Tree
Easy
5068
Magical constant 2
Medium
5069
The meeting place cannot be changed.
Easy
5070
Isolator
Very easy
5071
Roy and Coin Boxes
Medium
5072
Count the number of edges
Easy
5073
Multiedges
Very easy
5074
Degrees of vertices by a list of edges
5075
Half-degrees of vertices by edge lists
Very easy
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