19 lines
295 B
Python
19 lines
295 B
Python
#!/usr/bin/env python3
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lines = (x.strip() for x in open("input.txt"))
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signals = 0
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x = 1
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nxt = 20
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pos = 0
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for line in lines:
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pos += 2 if line[0] == 'a' else 1
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if pos >= nxt:
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signals += nxt * x
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nxt += 40
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if line[0] == 'a':
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x += int(line[5:])
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print(signals)
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