message: Update unique-paths-ii.py
diff: @@ -32,10 +32,10 @@ class Solution:
  ways = [0]*n
  ways[0] = 1
  - for i in range(m):
  + for i in xrange(m):
  if obstacleGrid[i][0] == 1:
  ways[0] = 0
  - for j in range(n):
  + for j in xrange(n):
  if obstacleGrid[i][j] == 1:
  ways[j] = 0
  elif j>0:
  