diff --git "a/Seol-JY/202512/01 BOJ \355\203\200\354\235\274 \354\261\204\354\232\260\352\270\260.md\342\200\216" "b/Seol-JY/202512/01 BOJ \355\203\200\354\235\274 \354\261\204\354\232\260\352\270\260.md\342\200\216" new file mode 100644 index 00000000..a443aaa2 --- /dev/null +++ "b/Seol-JY/202512/01 BOJ \355\203\200\354\235\274 \354\261\204\354\232\260\352\270\260.md\342\200\216" @@ -0,0 +1,27 @@ +```java +import java.io.BufferedReader; +import java.io.InputStreamReader; +import java.io.IOException; + +public class Main { + public static void main(String[] args) throws IOException { + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + int n = Integer.parseInt(br.readLine().trim()); + + if (n % 2 == 1) { + System.out.println(0); + return; + } + + int[] dp = new int[31]; + dp[0] = 1; + dp[2] = 3; + + for (int i = 4; i <= n; i += 2) { + dp[i] = 4 * dp[i - 2] - dp[i - 4]; + } + + System.out.println(dp[n]); + } +} +```