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Updated the return type

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This commit is contained in:
1227haran 2024-10-03 09:09:04 +05:30
parent 8762b5198d
commit 07edd684a5
1 changed files with 12 additions and 11 deletions
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23
data_structures/stacks/lexicographical_numbers.py
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@ -1,18 +1,21 @@
def lexical_order(max_number: int) -> str: from typing import Iterator
def lexical_order(max_number: int) -> Iterator[str]:
""" """
Generate numbers in lexical order from 1 to max_number. Generate numbers in lexical order from 1 to max_number.
>>> lexical_order(13) >>> " ".join(lexical_order(13))
'1 10 11 12 13 2 3 4 5 6 7 8 9' '1 10 11 12 13 2 3 4 5 6 7 8 9'
>>> lexical_order(1) >>> list(lexical_order(1))
'1' ['1']
>>> lexical_order(20) >>> " ".join(lexical_order(20))
'1 10 11 12 13 14 15 16 17 18 19 2 20 3 4 5 6 7 8 9' '1 10 11 12 13 14 15 16 17 18 19 2 20 3 4 5 6 7 8 9'
>>> lexical_order(25) >>> " ".join(lexical_order(25))
'1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 3 4 5 6 7 8 9' '1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 3 4 5 6 7 8 9'
>>> list(lexical_order(12))
['1', '10', '11', '12', '2', '3', '4', '5', '6', '7', '8', '9']
""" """
ans = []
stack = [1] stack = [1]
while stack: while stack:
@ -20,17 +23,15 @@ def lexical_order(max_number: int) -> str:
if num > max_number: if num > max_number:
continue continue
ans.append(str(num)) yield(str(num))
if (num % 10) != 9: if (num % 10) != 9:
stack.append(num + 1) stack.append(num + 1)
stack.append(num * 10) stack.append(num * 10)
return " ".join(ans)
if __name__ == "__main__": if __name__ == "__main__":
from doctest import testmod from doctest import testmod
testmod() testmod()
print(f"Numbers from 1 to 25 in lexical order: {lexical_order(25)}") print(f"Numbers from 1 to 25 in lexical order: {list(lexical_order(26))}")