message: Update partition-equal-subset-sum.py
diff: @@ -36,7 +36,7 @@ class Solution(object):
  dp = [False] * (s/2 + 1)
  dp[0] = True
  for num in nums:
  - for i in xrange(1, len(dp)):
  + for i in reversed(xrange(1, len(dp))):
  if num <= i:
  dp[i] = dp[i] or dp[i - num]
  return dp[-1]
  