September Morn Update

Task/Knapsack-problem-Continuous/Rust/knapsack-problem-continuous.rust

@@ -0,0 +1,34 @@
+fn main() {
+    let items: [(&str, f32, u8); 9] = [
+        ("beef", 3.8, 36),
+        ("pork", 5.4, 43),
+        ("ham", 3.6, 90),
+        ("greaves", 2.4, 45),
+        ("flitch", 4.0, 30),
+        ("brawn", 2.5, 56),
+        ("welt", 3.7, 67),
+        ("salami", 3.0, 95),
+        ("sausage", 5.9, 98),
+    ];
+    let mut weight: f32 = 15.0;
+    let mut values: Vec<(&str, f32, f32)> = Vec::new();
+    for item in &items {
+        values.push((item.0, f32::from(item.2) / item.1, item.1));
+    }
+
+    values.sort_by(|a, b| (a.1).partial_cmp(&b.1).unwrap());
+    values.reverse();
+
+    for choice in values {
+        if choice.2 <= weight {
+            println!("Grab {:.1} kgs of {}", choice.2, choice.0);
+            weight -= choice.2;
+            if (choice.2 - weight).abs() < std::f32::EPSILON {
+                return;
+            }
+        } else {
+            println!("Grab {:.1} kgs of {}", weight, choice.0);
+            return;
+        }
+    }
+}