Merge pull request #1172 from AlgorithmWithGod/JHLEE325

[20251020] BOJ / G5 / Ezreal 여눈부터 가네 ㅈㅈ / 이준희

Author: ShinHeeEul

JHLEE325/202510/20 BOJ G5 Ezreal 여눈부터 가네 ㅈㅈ.md

@@ -0,0 +1,30 @@
+```java
+import java.io.*;
+import java.util.*;
+
+public class Main {
+
+    static final int MOD = 1000000007;
+
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st;
+
+        int N = Integer.parseInt(br.readLine());
+
+        long[][] dp = new long[N + 1][3];
+
+        dp[1][1] = 1;
+        dp[1][2] = 1;
+
+        for (int i = 2; i <= N; i++) {
+            dp[i][0] = (dp[i-1][1] + dp[i-1][2]) % MOD;
+            dp[i][1] = (dp[i-1][0] + dp[i-1][2]) % MOD;
+            dp[i][2] = (dp[i-1][0] + dp[i-1][1]) % MOD;
+        }
+
+        System.out.println(dp[N-1][1]);
+    }
+}
+
+```