11 lines
291 B
Python
11 lines
291 B
Python
items = (int(x.strip()) for x in open("input.txt"))
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done = set()
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for item in items:
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counterpart = 2020 - item
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if counterpart in done:
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print("Found {} and {}: Sum={} Product={}".format(item, counterpart, item+counterpart, item*counterpart))
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break
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done.add(item)
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