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Post #1175 2.8K
Что выведет код?
from collections import ChainMap
d1 = {'x': 1, 'z': 10}
d2 = {'y': 2, 'z': 20}
d3 = {**d1, **d2}
d4 = ChainMap(d1, d2)
s1 = d3['x'] + d3['y'] + d3['z']
s2 = d4['x'] + d4['y'] + d4['z']
print(s1, s2)
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