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Merge pull request #1561 from AlgorithmWithGod/Seol-JY
[20251201] BOJ / G4 / 타일 채우기 / 설진영
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```java
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import java.io.BufferedReader;
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import java.io.InputStreamReader;
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import java.io.IOException;
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public class Main {
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public static void main(String[] args) throws IOException {
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BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
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int n = Integer.parseInt(br.readLine().trim());
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if (n % 2 == 1) {
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System.out.println(0);
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return;
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}
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int[] dp = new int[31];
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dp[0] = 1;
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dp[2] = 3;
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for (int i = 4; i <= n; i += 2) {
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dp[i] = 4 * dp[i - 2] - dp[i - 4];
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}
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System.out.println(dp[n]);
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}
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}
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```

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