Create last-stone-weight-ii.py

Author: kamyu104

Diff for: Python/last-stone-weight-ii.py

@@ -0,0 +1,14 @@
+# Time:  O(2^n)
+# Space: O(2^n)
+
+class Solution(object):
+    def lastStoneWeightII(self, stones):
+        """
+        :type stones: List[int]
+        :rtype: int
+        """
+        dp = {0}
+        for stone in stones:
+            dp |= {stone+i for i in dp}
+        S = sum(stones)
+        return min(abs(i-(S-i)) for i in dp)