solved 포도주시식 - 124ms 14852KB

Baekjoon/포도주시식/포도주시식_안창호.java

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+import java.io.*;
+import java.util.*;
+
+class 포도주시식_안창호 {
+    static int n;
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        n = Integer.parseInt(br.readLine());
+
+        int[] arr = new int[n + 1];
+        int[] dp = new int[n + 1];
+
+        for (int i = 1; i <= n; i++) {
+            arr[i] = Integer.parseInt(br.readLine());
+        }
+
+        dp[1] = arr[1];
+        if (n > 1) {
+            dp[2] = arr[1] + arr[2];
+        }
+
+        for (int i = 3; i <= n; i++) {
+            dp[i] = Math.max(dp[i - 1], Math.max(dp[i - 2] + arr[i], dp[i - 3] + arr[i - 1] + arr[i]));
+        }
+
+        System.out.println(dp[n]);
+    }
+}