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Challenges
2,500 Python challenges
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Roman Numerals
Hard
Python
numbers
strings
math
Sums of Powers of Two
Hard
Python
numbers
algorithms
math
Group in Order
Hard
Python
arrays
closures
scope
Lambda Expressions All the Way Down
Hard
Python
functional_programming
higher_order_functions
recursion
Two Product Problem
Hard
Python
loops
conditions
data_structures
Sudoku Validation
Hard
Python
higher_order_functions
validation
functional_programming
Sexy Primes
Hard
Python
algebra
validation
math
Flat List Depth Nesting
Hard
Python
arrays
loops
recursion
Slope to Angle Conversion
Hard
Python
algebra
math
numbers
Pyramidal Strings
Hard
Python
formatting
strings
math
Time Around the World
Hard
Python
dates
formatting
Who Won the League?
Hard
Python
arrays
data_structures
sorting
Maximum Product of Digits
Hard
Python
numbers
math
Consecutive Ascending Numbers
Hard
Python
arrays
sorting
strings
Scoring Strings
Hard
Python
strings
logic
Diagonal Rug
Hard
Python
arrays
loops
Secret Agent Password
Hard
Python
algorithms
cryptography
strings
Sort by Number of Calls
Hard
Python
closures
higher_order_functions
functional_programming
Vertical Text
Hard
Python
arrays
formatting
Recursion: Happy Number
Hard
Python
arrays
recursion
validation
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