19 lines
466 B
Python
19 lines
466 B
Python
from typing import List
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def intersperse(numbers: List[int], delimeter: int) -> List[int]:
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""" Insert a number 'delimeter' between every two consecutive elements of input list `numbers'
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>>> intersperse([], 4)
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[]
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>>> intersperse([1, 2, 3], 4)
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[1, 4, 2, 4, 3]
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"""
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if not numbers:
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return []
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result = [numbers[0]]
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for num in numbers[1:]:
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result.append(delimeter)
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result.append(num)
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return result |