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2,500 Python challenges
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An Introduction to the Map-Reduce Pattern
Hard
Python
functional_programming
higher_order_functions
math
Sort by String Length
Hard
Python
arrays
sorting
language_fundamentals
Removing Enemies
Hard
Python
arrays
language_fundamentals
Lowercase and Uppercase Map
Hard
Python
objects
arrays
language_fundamentals
Alternating Ones and Zeroes
Hard
Python
strings
validation
logic
Vowel Sandwich
Hard
Python
strings
language_fundamentals
validation
25-Mile Marathon
Hard
Python
algebra
arrays
math
Capitalize by ASCII
Hard
Python
strings
higher_order_functions
Count the Arguments
Hard
Python
language_fundamentals
functional_programming
Where is Bob!?!
Hard
Python
data_structures
language_fundamentals
arrays
Fix the Spacing
Hard
Python
strings
formatting
One, Two, Skip a Few
Hard
Python
arrays
numbers
Retrieve the Last N Elements
Hard
Python
arrays
language_fundamentals
Sum of all Evens in a Matrix
Hard
Python
arrays
loops
control_flow
Trace That Matrix
Hard
Python
arrays
math
language_fundamentals
Convert Year to Century
Hard
Python
algorithms
dates
math
X and Y Coordinates
Hard
Python
arrays
numbers
Split a String Based on Vowels and Consonants
Hard
Python
control_flow
conditions
functional_programming
Let's Sort This List!
Hard
Python
arrays
numbers
sorting
Instant JAZZ
Hard
Python
language_fundamentals
loops
arrays
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