Python & ML tasks
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Python, functions, classes, iterators, generators, numpy, pandas, scikit-learn, TensorFlow
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See solution
Что выведет код?
from collections import defaultdict
d = defaultdict(list)
d['a'].append(1)
d['a'].append(2)
d['b'].append(3)
sum((len(d['a']*3), len(d['b'])*5))
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