Fix linting.

src/holt59/aoc/2021/day7.py

@@ -1,21 +1,19 @@
 import sys
 
-import numpy as np
+positions = [int(c) for c in sys.stdin.read().strip().split(",")]
 
-positions = np.asarray([int(c) for c in sys.stdin.read().strip().split(",")])
-
-min_position, max_position = positions.min(), positions.max()
+min_position, max_position = min(positions), max(positions)
 
 # part 1
 answer_1 = min(
-    np.sum(np.abs(positions - position))
+    sum(abs(p - position) for p in positions)
     for position in range(min_position, max_position + 1)
 )
 print(f"answer 1 is {answer_1}")
 
 # part 2
 answer_2 = min(
-    np.sum(abs(positions - position) * (abs(positions - position) + 1) // 2)
+    sum(abs(p - position) * (abs(p - position) + 1) // 2 for p in positions)
     for position in range(min_position, max_position + 1)
 )
 print(f"answer 2 is {answer_2}")