3 lines
286 B
Python
3 lines
286 B
Python
#!/usr/bin/env python3
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import numpy as p;import scipy.ndimage as i;a=p.array([[int(n)for n in line.strip()]for line in open("input.txt")]);n=i.generate_binary_structure(len(a.shape),1);print(sum(a[p.where((i.minimum_filter(a,footprint=n)==a)*~(i.maximum_filter(a,footprint=n)==a))]+1))
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