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Python Python Comprehensions

YURI PAPINIAN
YURI PAPINIAN
11,838 Points
Posted by YURI PAPINIAN
YURI PAPINIAN
11,838 Points

Is it possible?

Can I solve this problem by only using comprehension lists?

Given an array of ints, return the number of 9's in the array.

array_count9([1, 2, 9]) → 1 array_count9([1, 9, 9]) → 2 array_count9([1, 9, 9, 3, 9]) → 3

2 Answers

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

Would combining one with a "len" function count?

array_count9(a):
    return len([n for n in a if n==9])
YURI PAPINIAN
YURI PAPINIAN
11,838 Points
YURI PAPINIAN
YURI PAPINIAN
11,838 Points

Thank you. I really appreciate your help.