[Personal] BOJ 2156: 포도주 시식

Author: JAEHEE25

personal/JAEHEE25/BOJ/BOJ2156.java

@@ -0,0 +1,24 @@
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+class BOJ2156 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int N = Integer.parseInt(br.readLine());
+        int[] wines = new int[N+1];
+        for (int i = 1; i <= N; i++) {
+            wines[i] = Integer.parseInt(br.readLine());
+        }
+
+        int[] dp = new int[N+1]; //dp[i] = i까지 최대로 마실 수 있는 포도주의 양
+        for (int i = 1; i <= N; i++) {
+            if (i == 1) dp[1] = wines[1];
+            else if (i == 2) dp[2] = wines[1] + wines[2];
+            else dp[i] = Math.max(dp[i-1], wines[i] + Math.max(dp[i-2], dp[i-3] + wines[i-1]));
+        }
+
+        System.out.println(dp[N]);
+
+    }
+}