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Challenges
2,500 Python challenges
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ASCII Charts (Part 3: Column Chart)
Hard
Python
strings
OOP Minesweeper
Hard
Python
classes
games
loops
Doomsday Switches
Hard
Python
logic
algorithms
Longest Valid Parentheses
Hard
Python
algorithms
higher_order_functions
logic
Find the Words That Fit the Fragments
Hard
Python
algorithms
loops
math
Binary Sums
Hard
Python
numbers
Finding the Inside Angle
Hard
Python
math
trigonometry
algebra
Trifid Cipher
Hard
Python
cryptography
logic
strings
Complete the Pattern
Hard
Python
strings
Vampire Numbers
Hard
Python
numbers
algorithms
recursion
Calculate How Many Numbers with Unique Digits
Hard
Python
math
numbers
loops
Evaluate the Group of Parentheses
Hard
Python
algorithms
logic
regex
Split the String into Substrings with Non-overlapping Characters
Hard
Python
algorithms
conditions
recursion
Generate Different Strings
Hard
Python
algorithms
conditions
loops
Sorting by Price and Importance
Hard
Python
arrays
logic
numbers
Chance of a Specific Sum for N Dice
Hard
Python
algorithms
games
loops
Let the Dominoes Fall Down
Hard
Python
algorithms
logic
regex
First-Degree Equation
Hard
Python
algebra
math
algorithms
Rail Fence Cipher
Hard
Python
cryptography
algorithms
strings
Padovan Sequence
Hard
Python
numbers
math
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