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1
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from datetime import datetime |
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2
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from operator import sub |
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3
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from typing import List |
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4
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5
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6
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def chunk(lst, n): |
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7
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return zip(*[iter(lst)] * n) |
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8
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9
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10
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def sum_light(els: List[datetime]) -> int: |
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11
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return sum(map(lambda x: x.total_seconds(), list(map(lambda x: x[1]-x[0], chunk(els, 2))))) |
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12
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13
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14
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if __name__ == '__main__': |
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15
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print("Example:") |
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16
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print(sum_light([ |
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17
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datetime(2015, 1, 12, 10, 0, 0), |
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18
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datetime(2015, 1, 12, 10, 10, 10), |
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19
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datetime(2015, 1, 12, 11, 0, 0), |
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20
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datetime(2015, 1, 12, 11, 10, 10), |
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21
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])) |
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22
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23
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# These "asserts" are used for self-checking and not for an auto-testing |
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assert sum_light(els=[ |
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25
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datetime(2015, 1, 12, 10, 0, 0), |
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26
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datetime(2015, 1, 12, 10, 10, 10), |
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27
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]) == 610 |
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28
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29
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assert sum_light([ |
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30
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datetime(2015, 1, 12, 10, 0, 0), |
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31
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datetime(2015, 1, 12, 10, 10, 10), |
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32
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datetime(2015, 1, 12, 11, 0, 0), |
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33
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datetime(2015, 1, 12, 11, 10, 10), |
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34
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]) == 1220 |
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35
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36
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assert sum_light([ |
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37
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datetime(2015, 1, 12, 10, 0, 0), |
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38
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datetime(2015, 1, 12, 10, 10, 10), |
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39
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datetime(2015, 1, 12, 11, 0, 0), |
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40
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datetime(2015, 1, 12, 11, 10, 10), |
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41
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datetime(2015, 1, 12, 11, 10, 10), |
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42
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datetime(2015, 1, 12, 12, 10, 10), |
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43
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]) == 4820 |
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44
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45
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assert sum_light([ |
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46
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datetime(2015, 1, 12, 10, 0, 0), |
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47
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datetime(2015, 1, 12, 10, 0, 1), |
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48
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]) == 1 |
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49
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50
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assert sum_light([ |
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51
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datetime(2015, 1, 12, 10, 0, 0), |
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52
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datetime(2015, 1, 12, 10, 0, 10), |
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53
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datetime(2015, 1, 12, 11, 0, 0), |
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54
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datetime(2015, 1, 13, 11, 0, 0), |
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55
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]) == 86410 |
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56
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57
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print("The first mission in series is completed? Click 'Check' to earn cool rewards!") |
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58
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KenMercusLai /
checkio
