A-M baby

Task/Knapsack-problem-0-1/J/knapsack-problem-0-1-1.j

@@ -0,0 +1,28 @@
+'names values'=:|:".;._2]0 :0
+  'map';                       9         150
+  'compass';                  13          35
+  'water';                   153         200
+  'sandwich';                 50         160
+  'glucose';                  15          60
+  'tin';                      68          45
+  'banana';                   27          60
+  'apple';                    39          40
+  'cheese';                   23          30
+  'beer';                     52          10
+  'suntan cream';             11          70
+  'camera';                   32          30
+  'tshirt';                   24          15
+  'trousers';                 48          10
+  'umbrella';                 73          40
+  'waterproof trousers';      42          70
+  'waterproof overclothes';   43          75
+  'notecase';                 22          80
+  'sunglasses';                7          20
+  'towel';                    18          12
+  'socks';                     4          50
+  'book';                     30          10
+)
+
+X=: +/ .*"1
+plausible=: (] (] #~ 400 >: X) #:@i.@(2&^)@#)@:({."1)
+best=: (plausible ([ {~  [ (i. >./)@:X {:"1@]) ]) values

Task/Knapsack-problem-0-1/J/knapsack-problem-0-1-2.j

@@ -0,0 +1,15 @@
+   +/best#values  NB. total weight and value
+396 1030
+   best#names
+map
+compass
+water
+sandwich
+glucose
+banana
+suntan cream
+waterproof trousers
+waterproof overclothes
+notecase
+sunglasses
+socks