[수현] 다이나믹 프로그래밍 - 포도주 시식

src/수현/다이나믹_프로그래밍/포도주_시식.java

@@ -0,0 +1,35 @@
+package 수현.다이나믹_프로그래밍;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+public class 포도주_시식 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int N = Integer.parseInt(br.readLine());
+        int[] arr = new int[N];
+        int[] dp = new int[N];
+        for (int i = 0; i < N; i++) {
+            arr[i] = Integer.parseInt(br.readLine());
+        }
+
+        if (N == 1) {
+            System.out.println(arr[0]);
+            return;
+        } else if (N == 2) {
+            System.out.println(arr[0] + arr[1]);
+            return;
+        }
+
+        dp[0] = arr[0];
+        dp[1] = arr[0] + arr[1];
+        dp[2] = Math.max(dp[1], Math.max(arr[0] + arr[2], arr[1] + arr[2]));
+
+        for (int i = 3; i < N; i++) {
+            dp[i] = Math.max(dp[i - 1], Math.max(dp[i - 2], dp[i - 3] + arr[i - 1]) + arr[i]);
+        }
+
+        System.out.println(dp[N - 1]);
+    }
+}