10 lines
295 B
Python
10 lines
295 B
Python
#!/usr/bin/env python3
|
|
|
|
lines = (list(map(int, x.strip().split(','))) for x in open("input.txt"))
|
|
|
|
for line in lines:
|
|
line.sort()
|
|
mean = round(sum(line) / len(line))
|
|
# fix of by one error
|
|
print(min(sum(abs(x - m)*(abs(x - m)+1)//2 for x in line) for m in range(mean-1, mean+2)))
|