Data commit

Task/Knapsack-problem-Continuous/V-(Vlang)/knapsack-problem-continuous.v

@@ -0,0 +1,42 @@
+struct Item {
+    item string
+    weight f64
+    price f64
+}
+
+fn main(){
+    mut left := 15.0
+    mut items := [
+        Item{'beef', 3.8, 36},
+        Item{'pork', 5.4, 43},
+        Item{'ham', 3.6, 90},
+        Item{'greaves', 2.4, 45},
+        Item{'flitch', 4.0, 30},
+        Item{'brawn', 2.5, 56},
+        Item{'welt', 3.7, 67},
+        Item{'salami', 3.0, 95},
+        Item{'sausage', 5.9, 98}
+    ]
+    items.sort_with_compare(fn (a &Item, b &Item) int {
+        if a.weight/a.price < b.weight/b.price {
+            return -1
+        } else if a.weight/a.price > b.weight/b.price {
+            return 1
+        } else {
+            return 0
+        }
+    })
+    for item in items {
+        if item.weight <= left {
+            println('Take all the $item.item')
+            if item.weight == left {
+                return
+            }
+            left -= item.weight
+        } else {
+            println('Take ${left:.1}kg $item.item')
+            return
+        }
+    }
+    //println(items)
+}