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Add solution for Project Euler problem 191 #2875

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Merged
merged 4 commits into from
Oct 11, 2020
Merged

Add solution for Project Euler problem 191 #2875

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1f506f1
Project Euler problem 191 solution
darkstar Oct 5, 2020
26a66e0
Add type hints and reference links
darkstar Oct 6, 2020
a44e193
Address requested changes
darkstar Oct 10, 2020
2107864
Address requested changes
darkstar Oct 11, 2020
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Address requested changes
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@darkstar
darkstar committed Oct 11, 2020
commit 210786412ec92974bc75e09b8a442203ca6323de
6 changes: 0 additions & 6 deletions project_euler/problem_191/sol1.py
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Expand Up @@ -26,7 +26,6 @@
"""


# a cache to speed up calculation
cache = {}


Expand Down Expand Up @@ -84,9 +83,6 @@ def _calculate(days: int, absent: int, late: int) -> int:

prizestrings = state_late + state_absent + state_ontime

# keep the value we calculated in the cache, so that later we do not
# need to recurse again. This is the main improvement which brings
# runtime down from seconds/minutes to usually below 1 second.
cache[key] = prizestrings
return prizestrings

Expand All @@ -102,8 +98,6 @@ def solution(days: int = 30) -> int:
43
"""

# we call the calculate function above, with initially
# no absent days and no late days.
return _calculate(days, absent=0, late=0)


Expand Down