A-M baby

2013-04-10 21:29:02 -07:00 · 2013-04-10 21:29:02 -07:00 · db842d013d
commit db842d013d
parent 764da6cbbb
19005 changed files with 197040 additions and 7 deletions
--- a/Task/Greatest-subsequential-sum/Python/greatest-subsequential-sum-2.py
+++ b/Task/Greatest-subsequential-sum/Python/greatest-subsequential-sum-2.py
@ -0,0 +1,8 @@
+def maxsum(sequence):
+    """Return maximum sum."""
+    maxsofar, maxendinghere = 0, 0
+    for x in sequence:
+        # invariant: ``maxendinghere`` and ``maxsofar`` are accurate for ``x[0..i-1]``
+        maxendinghere = max(maxendinghere + x, 0)
+        maxsofar = max(maxsofar, maxendinghere)
+    return maxsofar