49 lines
1.0 KiB
Python
49 lines
1.0 KiB
Python
def part_1(data):
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ranges = []
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for line in data.splitlines():
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l, h = list(map(int, line.split("-")))
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ranges.append((l, h))
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ranges.sort()
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merged = list(ranges[0])
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for i in range(1, len(ranges)):
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current = ranges[i]
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if current[0] <= merged[1] + 1:
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merged[1] = max(current[1], merged[1])
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else:
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print(merged[1] + 1)
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return
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def part_2(data):
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ranges = []
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for line in data.splitlines():
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l, h = list(map(int, line.strip().split("-")))
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ranges.append((l, h))
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ranges.sort()
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blocked_merged = [list(ranges[0])]
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for block in ranges:
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merged = blocked_merged[-1]
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if block[0] <= merged[1] + 1:
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merged[1] = max(block[1], merged[1])
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else:
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blocked_merged.append(list(block))
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total = 2**32
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for lo, hi in blocked_merged:
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total -= (hi - lo + 1)
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print(total)
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def main():
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data = open(0).read().strip()
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part_1(data)
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part_2(data)
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if __name__ == "__main__":
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main()
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