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Problems

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Difficulty
Sort by
4857
Olympiad in Hogwarts
Very easy
4860
Cleopatra's Circlet
Medium
4887
Numbers
Easy
4898
Very simple
Very easy
4965
Interesting Number
Very easy
5051
Fast Multiplication
5056
Beautiful dates
Easy
5064
Magic constant
Very easy
5066
The quotient and remainder by a digit
Very easy
5081
Lanterns
Very easy
5093
Funding
Very easy
5103
Koza Nostra
Easy
5124
B-Casting
Very easy
5125
Pen Counts
Very easy
5139
Average train speed
Very easy
5155
Rectangle Covered with Squares
Easy
5158
Hippogriffs
Very easy
5197
Fibonacci Numbers
Medium
5212
Simple task
Easy
5223
Watson`s memory
Easy
5225
Work
Very easy
5227
Task
Hard
5228
Palindrome
Very easy
5234
Formatting
Easy
5241
Quest
Medium
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