[20250803] BOJ / G4 / 타일 채우기 / 이강현

Author: lkhyun

lkhyun/202508/03 BOJ G4 타일 채우기.md

@@ -0,0 +1,30 @@
+```java
+import java.util.*;
+import java.io.*;
+
+public class Main {
+    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+    static StringTokenizer st;
+    static int N;
+    static int[] dp;
+
+    public static void main(String[] args) throws Exception {
+        int N = Integer.parseInt(br.readLine());
+        if(N%2 == 1){
+            bw.write("0");
+            bw.close();
+            return;
+        }
+
+        dp = new int[N+1];
+        dp[0] = 1;
+        dp[2] = 3;
+        for (int i = 4; i <= N; i++) {
+            dp[i] = 4*dp[i-2] - dp[i-4];
+        }
+        bw.write(dp[N]+"");
+        bw.close();
+    }
+}
+```