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Python 2022-01-29 04:46:39
dictionary changed size during iteration
# to avoid this problem, make a copy of keys: for i in list(d) # Can also solve this problem here: # https://leetcode.com/problems/binary-trees-with-factors/ arr = [2,4,5,10] dp = collections.defaultdict(int) # this would create error since dp[x/i] is... Add solution -
Python 2021-09-29 02:56:02
find all color in image python
>>> from PIL import Image >>> im = Image.open('polar-bear-cub.jpg') >>> from collections import defaultdict >>> by_color = defaultdict(int) >>> for pixel in im.getdata(): ... by_color[pixel] += 1 >>&g... Add solution
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