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@ -16,13 +16,13 @@ repos:
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- id: auto-walrus
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- repo: https://github.com/astral-sh/ruff-pre-commit
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rev: v0.9.1
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rev: v0.9.3
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hooks:
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- id: ruff
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- id: ruff-format
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- repo: https://github.com/codespell-project/codespell
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rev: v2.3.0
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rev: v2.4.0
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hooks:
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- id: codespell
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additional_dependencies:
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@ -88,7 +88,7 @@ def __prepare(
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...
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KeyError: 'Length of alphabet has to be 27.'
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Testing with punctuations that are not in the given alphabet
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Testing with punctuation not in the given alphabet
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>>> __prepare('am i a boy?','abCdeFghijkLmnopqrStuVwxYZ+')
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Traceback (most recent call last):
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@ -128,7 +128,7 @@ def encrypt_message(
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encrypt_message
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===============
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Encrypts a message using the trifid_cipher. Any punctuatuions that
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Encrypts a message using the trifid_cipher. Any punctuatuion chars that
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would be used should be added to the alphabet.
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PARAMETERS
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@ -9,7 +9,9 @@ import time
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def cross(items_a, items_b):
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"Cross product of elements in A and elements in B."
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"""
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Cross product of elements in A and elements in B.
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"""
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return [a + b for a in items_a for b in items_b]
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@ -27,7 +29,7 @@ peers = {s: {x for u in units[s] for x in u} - {s} for s in squares}
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def test():
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"A set of unit tests."
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"""A set of unit tests."""
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assert len(squares) == 81
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assert len(unitlist) == 27
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assert all(len(units[s]) == 3 for s in squares)
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@ -47,8 +49,10 @@ def test():
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def parse_grid(grid):
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"""Convert grid to a dict of possible values, {square: digits}, or
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return False if a contradiction is detected."""
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"""
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Convert grid to a dict of possible values, {square: digits}, or
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return False if a contradiction is detected.
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"""
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## To start, every square can be any digit; then assign values from the grid.
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values = {s: digits for s in squares}
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for s, d in grid_values(grid).items():
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@ -58,15 +62,19 @@ def parse_grid(grid):
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def grid_values(grid):
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"Convert grid into a dict of {square: char} with '0' or '.' for empties."
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"""
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Convert grid into a dict of {square: char} with '0' or '.' for empties.
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"""
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chars = [c for c in grid if c in digits or c in "0."]
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assert len(chars) == 81
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return dict(zip(squares, chars))
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def assign(values, s, d):
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"""Eliminate all the other values (except d) from values[s] and propagate.
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Return values, except return False if a contradiction is detected."""
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"""
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Eliminate all the other values (except d) from values[s] and propagate.
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Return values, except return False if a contradiction is detected.
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"""
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other_values = values[s].replace(d, "")
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if all(eliminate(values, s, d2) for d2 in other_values):
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return values
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@ -75,8 +83,10 @@ def assign(values, s, d):
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def eliminate(values, s, d):
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"""Eliminate d from values[s]; propagate when values or places <= 2.
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Return values, except return False if a contradiction is detected."""
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"""
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Eliminate d from values[s]; propagate when values or places <= 2.
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Return values, except return False if a contradiction is detected.
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"""
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if d not in values[s]:
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return values ## Already eliminated
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values[s] = values[s].replace(d, "")
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@ -99,7 +109,9 @@ def eliminate(values, s, d):
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def display(values):
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"Display these values as a 2-D grid."
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"""
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Display these values as a 2-D grid.
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"""
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width = 1 + max(len(values[s]) for s in squares)
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line = "+".join(["-" * (width * 3)] * 3)
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for r in rows:
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@ -114,11 +126,14 @@ def display(values):
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def solve(grid):
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"""
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Solve the grid.
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"""
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return search(parse_grid(grid))
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def some(seq):
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"Return some element of seq that is true."
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"""Return some element of seq that is true."""
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for e in seq:
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if e:
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return e
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@ -126,7 +141,9 @@ def some(seq):
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def search(values):
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"Using depth-first search and propagation, try all possible values."
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"""
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Using depth-first search and propagation, try all possible values.
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"""
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if values is False:
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return False ## Failed earlier
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if all(len(values[s]) == 1 for s in squares):
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@ -137,9 +154,11 @@ def search(values):
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def solve_all(grids, name="", showif=0.0):
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"""Attempt to solve a sequence of grids. Report results.
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"""
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Attempt to solve a sequence of grids. Report results.
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When showif is a number of seconds, display puzzles that take longer.
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When showif is None, don't display any puzzles."""
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When showif is None, don't display any puzzles.
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"""
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def time_solve(grid):
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start = time.monotonic()
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@ -162,7 +181,9 @@ def solve_all(grids, name="", showif=0.0):
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def solved(values):
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"A puzzle is solved if each unit is a permutation of the digits 1 to 9."
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"""
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A puzzle is solved if each unit is a permutation of the digits 1 to 9.
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"""
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def unitsolved(unit):
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return {values[s] for s in unit} == set(digits)
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@ -177,9 +198,11 @@ def from_file(filename, sep="\n"):
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def random_puzzle(assignments=17):
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"""Make a random puzzle with N or more assignments. Restart on contradictions.
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"""
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Make a random puzzle with N or more assignments. Restart on contradictions.
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Note the resulting puzzle is not guaranteed to be solvable, but empirically
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about 99.8% of them are solvable. Some have multiple solutions."""
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about 99.8% of them are solvable. Some have multiple solutions.
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"""
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values = {s: digits for s in squares}
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for s in shuffled(squares):
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if not assign(values, s, random.choice(values[s])):
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@ -191,7 +214,9 @@ def random_puzzle(assignments=17):
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def shuffled(seq):
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"Return a randomly shuffled copy of the input sequence."
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"""
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Return a randomly shuffled copy of the input sequence.
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"""
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seq = list(seq)
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random.shuffle(seq)
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return seq
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@ -221,6 +221,10 @@ def del_node(root: MyNode, data: Any) -> MyNode | None:
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else:
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root.set_right(del_node(right_child, data))
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# Re-fetch left_child and right_child references
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left_child = root.get_left()
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right_child = root.get_right()
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if get_height(right_child) - get_height(left_child) == 2:
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assert right_child is not None
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if get_height(right_child.get_right()) > get_height(right_child.get_left()):
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@ -159,7 +159,7 @@ lint.pylint.max-returns = 8 # default: 6
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lint.pylint.max-statements = 88 # default: 50
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[tool.codespell]
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ignore-words-list = "3rt,ans,bitap,crate,damon,fo,followings,hist,iff,kwanza,manuel,mater,secant,som,sur,tim,toi,zar"
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ignore-words-list = "3rt,abd,aer,ans,bitap,crate,damon,fo,followings,hist,iff,kwanza,manuel,mater,secant,som,sur,tim,toi,zar"
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skip = "./.*,*.json,*.lock,ciphers/prehistoric_men.txt,project_euler/problem_022/p022_names.txt,pyproject.toml,strings/dictionary.txt,strings/words.txt"
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[tool.pytest.ini_options]
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@ -85,6 +85,8 @@ def bubble_sort_recursive(collection: list[Any]) -> list[Any]:
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[1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7]
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>>> bubble_sort_recursive([1, 3.3, 5, 7.7, 2, 4.4, 6])
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[1, 2, 3.3, 4.4, 5, 6, 7.7]
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>>> bubble_sort_recursive(['a', 'Z', 'B', 'C', 'A', 'c'])
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['A', 'B', 'C', 'Z', 'a', 'c']
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>>> import random
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>>> collection_arg = random.sample(range(-50, 50), 100)
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>>> bubble_sort_recursive(collection_arg) == sorted(collection_arg)
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