JuniorTheoryCommon

What does the program print?

Python

names = ["ann", "bob", "cid"]
scores = [90, 75]
pairs = list(zip(names, scores))
numbered = list(enumerate(names, 1))
print(len(pairs), numbered[-1][0])

2 3

Expecting 3 pairs: zip stops at the shortest input and raises no error, so the third name gets no score and pairs holds 2 tuples.
Expecting the last number to be 2: enumerate(names, 1) starts counting at 1, so the three names get 1, 2 and 3.

What does pairs contain here?
How would you number the names starting from 0?

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JuniorTheoryCommon

What does the program print?

Python

names = ["ann", "bob", "cid"]
scores = [90, 75]
pairs = list(zip(names, scores))
numbered = list(enumerate(names, 1))
print(len(pairs), numbered[-1][0])

2 3

Expecting 3 pairs: zip stops at the shortest input and raises no error, so the third name gets no score and pairs holds 2 tuples.
Expecting the last number to be 2: enumerate(names, 1) starts counting at 1, so the three names get 1, 2 and 3.

What does pairs contain here?
How would you number the names starting from 0?

Back to questions Open topic in roadmap →Answer it yourself — Quiz