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4 changed files with 0 additions and 2074 deletions

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#!/usr/bin/env python
import sys
import itertools
Report = list[int]
def solve(input: list[str]) -> int:
def parse(input: list[str]) -> list[Report]:
return [[int(n) for n in line.split()] for line in input]
def is_safe(report: Report) -> bool:
def is_increasing_safe(report: Report):
for a, b in itertools.pairwise(report):
if a >= b:
return False
if not 1 <= (b - a) <= 3:
return False
return True
return is_increasing_safe(report) or is_increasing_safe(report[::-1])
return sum(is_safe(report) for report in parse(input))
def main() -> None:
input = sys.stdin.read().splitlines()
print(solve(input))
if __name__ == "__main__":
main()

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@ -1,41 +0,0 @@
#!/usr/bin/env python
import sys
import itertools
Report = list[int]
def solve(input: list[str]) -> int:
def parse(input: list[str]) -> list[Report]:
return [[int(n) for n in line.split()] for line in input]
def is_safe(report: Report) -> bool:
def is_increasing_safe(report: Report):
for a, b in itertools.pairwise(report):
if a >= b:
return False
if not 1 <= (b - a) <= 3:
return False
return True
return is_increasing_safe(report) or is_increasing_safe(report[::-1])
# Dampening by brute force
def is_dampened_safe(report: Report) -> bool:
for i in range(len(report)):
dampened_report = report[:i] + report[i + 1 :]
if is_safe(dampened_report):
return True
return False
return sum(is_dampened_safe(report) for report in parse(input))
def main() -> None:
input = sys.stdin.read().splitlines()
print(solve(input))
if __name__ == "__main__":
main()

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