[이진희] Day16

leetcode3/이진희/682. Baseball Game.java

@@ -0,0 +1,26 @@
+import java.util.*;
+
+class Solution {
+    public int calPoints(String[] operations) {
+        List<Integer> list = new ArrayList<>();
+
+        for (String s : operations) {
+            if (s.equals("+")) {
+                list.add(list.get(list.size() - 1) + list.get(list.size() - 2));
+            } else if (s.equals("D")) {
+                list.add(list.get(list.size() - 1) * 2);
+            } else if (s.equals("C")) {
+                list.remove(list.size() - 1);
+            } else {
+                list.add(Integer.parseInt(s));
+            }
+        }
+
+        int ans = 0;
+        for (int score : list) {
+            ans += score;
+        }
+
+        return ans;
+    }
+}