3 lines
183 B
Python
3 lines
183 B
Python
#!/usr/bin/env python3
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l=[*map(int,list(open("input.txt"))[0].split(','))];l.sort();n=round(sum(l)/len(l));print(min(sum(abs(x-m)*(abs(x-m)+1)//2 for x in l)for m in range(n-1,n+2)))
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