update file

kanglicheng · kanglicheng · commit e62c1af49c8a · 2018-03-09T22:43:29.000-08:00
diff --git a/EPI/EPI_ch5_arrays.py b/EPI/EPI_ch5_arrays.py
@@ -51,3 +51,7 @@ def partition_opt(arr, i):
 and update the array to represent N+1.
 """
 
+
+def knapsack(items, weights, W):
+	
+
