advent-of-code/2021/day7/day7.py

16 lines
403 B
Python
Executable file

#!/usr/bin/env python
import sys
if __name__ == '__main__':
positions = [int(i) for i in sys.stdin.readline().split(',')]
def calc(movement_cost):
return min(
sum(movement_cost(abs(position-target)) for position in positions)
for target in range(min(positions), max(positions)+1)
)
print(calc(lambda n: n))
print(calc(lambda n: n * (n+1)//2))