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Challenges
2,500 Python challenges
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Characters and ASCII Code Dictionary
Hard
Python
objects
higher_order_functions
RegEx XVI: Negation
Hard
Python
regex
strings
Invert Keys and Values
Hard
Python
objects
Classes For Fetching Information on a Sports Player
Hard
Python
classes
objects
strings
Fullname and Email
Hard
Python
classes
objects
strings
Scottish Screaming
Hard
Python
strings
formatting
regex
Letters Shared Between Two Words
Hard
Python
arrays
strings
Check If Lines Are Parallel
Hard
Python
algebra
math
validation
Harshad Number
Hard
Python
math
numbers
strings
Ones, Threes and Nines (Version #1)
Hard
Python
classes
numbers
math
RegEx VIII-B: Digit Character Class
Hard
Python
regex
language_fundamentals
formatting
Volume of a Spherical Shell
Hard
Python
math
numbers
geometry
Sum of List Elements Except Itself
Hard
Python
arrays
Transcribe to mRNA
Hard
Python
algorithms
conditions
language_fundamentals
Algorithms I: Introduction to Recursion
Hard
Python
algorithms
logic
recursion
Reverse Words in a String
Hard
Python
strings
formatting
Format IX: Unpacking Lists
Hard
Python
formatting
strings
language_fundamentals
Burglary Series (06): Convert to Number
Hard
Python
objects
loops
arrays
Find the Vertex of a Quadratic
Hard
Python
algebra
math
Sum Fractions
Hard
Python
algorithms
arrays
data_structures
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