添加 背包问题理论基础完全背包.md Scala版本

problems/背包问题理论基础完全背包.md

@@ -359,7 +359,27 @@ function test_CompletePack(): void {
 test_CompletePack();
 ```
 
+Scala:
 
+```scala
+// 先遍历物品，再遍历背包容量
+object Solution {
+  def test_CompletePack() {
+    var weight = Array[Int](1, 3, 4)
+    var value = Array[Int](15, 20, 30)
+    var baseweight = 4
+
+    var dp = new Array[Int](baseweight + 1)
+
+    for (i <- 0 until weight.length) {
+      for (j <- weight(i) to baseweight) {
+        dp(j) = math.max(dp(j), dp(j - weight(i)) + value(i))
+      }
+    }
+    dp(baseweight)
+  }
+}
+```
 
 
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