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Challenges
2,500 Python challenges
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Vigenere Cipher
Hard
Python
arrays
loops
strings
Calculate the Quartiles
Hard
Python
math
numbers
arrays
Longest Substring with Non-repeating Characters
Hard
Python
strings
loops
Polybius Square (Basic)
Hard
Python
cryptography
arrays
strings
🦁🐱 Count Animals 🐶🐺
Hard
Python
validation
strings
regex
Level Order Traversal
Hard
Python
loops
logic
data_structures
Ascending Consecutive Numbers
Hard
Python
strings
higher_order_functions
Rotate-Transform the Two-Dimensional Matrix
Hard
Python
algorithms
arrays
interview
MTG Mana Cost
Hard
Python
strings
games
validation
Combinations
Hard
Python
math
numbers
Area of Overlapping Rectangles
Hard
Python
algebra
math
objects
Hash Juggling
Hard
Python
cryptography
arrays
sorting
Word Buckets
Hard
Python
strings
control_flow
Recursion: The Out-Shuffle
Hard
Python
recursion
numbers
logic
What Gives a Bad Mood?
Hard
Python
algorithms
arrays
Maxie and Minnie
Hard
Python
numbers
strings
Variable Length Quantity (VLQ) Encoding
Hard
Python
algorithms
bit_operations
data_structures
Football Tournament Scores
Hard
Python
formatting
sorting
data_structures
Consecutive Number Series
Hard
Python
arrays
loops
numbers
Phone Letter Combinations
Hard
Python
arrays
algorithms
loops
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