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def is_safe(report): | |
increasing = True | |
decreasing = True | |
for i in range(len(report) - 1): | |
diff = report[i+1] - report[i] | |
if not (1 <= abs(diff) <= 3): | |
return False | |
if diff > 0: | |
decreasing = False | |
if diff < 0: | |
increasing = False | |
return increasing or decreasing | |
def is_safe_with_removal(report): | |
if is_safe(report): | |
return True | |
for i in range(len(report)): | |
modified_report = report[:i] + report[i+1:] | |
if is_safe(modified_report): | |
return True | |
return False | |
def count_safe_reports(file_path, part_two=False): | |
with open(file_path, 'r') as file: | |
reports = [list(map(int, line.split())) for line in file] | |
safe_count = 0 | |
for report in reports: | |
if part_two: | |
if is_safe_with_removal(report): | |
safe_count += 1 | |
else: | |
if is_safe(report): | |
safe_count += 1 | |
return safe_count | |
file = "input.txt" | |
# Part One | |
result1 = count_safe_reports(file, part_two=False) | |
print(result1) | |
# Part Two | |
result2 = count_safe_reports(file, part_two=True) | |
print(result2) |