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2,500 Python challenges
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Seven Segment Display
Hard
Python
logic
numbers
Split 25 (Part 1)
Hard
Python
algebra
math
numbers
The Trains Are Delayed Again
Hard
Python
classes
objects
dates
Billboard
Hard
Python
arrays
validation
Pair of Sublists with Max Sum (Casual Version)
Hard
Python
algorithms
arrays
math
Kaprekar's Constant
Hard
Python
sorting
recursion
numbers
Prime Divisors
Hard
Python
math
algorithms
numbers
Breaking News!
Hard
Python
strings
loops
KixCodes in the Netherlands
Hard
Python
algorithms
formatting
regex
Intersecting Rows and Columns
Hard
Python
arrays
loops
higher_order_functions
Longest Consecutive Run
Hard
Python
arrays
control_flow
logic
Give Me a Hint
Hard
Python
arrays
strings
loops
Dividing into Chunks of Maximum Sum N
Hard
Python
arrays
functional_programming
Untouchable Numbers
Hard
Python
numbers
math
algorithms
Postfix Notation (Part 1: Evaluation)
Hard
Python
logic
math
Rectangle or Not?
Hard
Python
math
strings
validation
Diagonal Matrices
Hard
Python
arrays
functional_programming
Palindrome Timestamps
Hard
Python
math
numbers
Find Value in a Binary Tree
Hard
Python
recursion
data_structures
validation
Recursion: Isolated or Grouped?
Hard
Python
recursion
arrays
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