[20250913] BOJ / G3 / 카드 게임 / 김민진

zinnnn37/202509/13 BOJ G3 카드 게임.md

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+```java
+import java.io.*;
+import java.util.Arrays;
+import java.util.StringTokenizer;
+
+public class BJ_11062_카드_게임 {
+
+	private static final BufferedReader  br = new BufferedReader(new InputStreamReader(System.in));
+	private static final BufferedWriter  bw = new BufferedWriter(new OutputStreamWriter(System.out));
+	private static final StringBuilder   sb = new StringBuilder();
+	private static       StringTokenizer st;
+
+	private static int N;
+
+	private static int[]     cards   = new int[1001];
+	private static boolean[] visited = new boolean[1001];
+	private static int[][]   dp      = new int[1001][1001];
+
+	public static void main(String[] args) throws IOException {
+		int T = Integer.parseInt(br.readLine());
+
+		while (T-- > 0) {
+			init();
+			sol();
+		}
+		bw.write(sb.toString());
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+
+	private static void init() throws IOException {
+		N = Integer.parseInt(br.readLine());
+
+		Arrays.fill(cards, 0);
+		Arrays.fill(visited, false);
+		for (int i = 0; i < N; i++) {
+			Arrays.fill(dp[i], 0);
+		}
+
+		st = new StringTokenizer(br.readLine());
+		for (int i = 0; i < N; i++) {
+			cards[i] = Integer.parseInt(st.nextToken());
+		}
+	}
+
+	private static void sol() throws IOException {
+		game(0, 0, N - 1);
+
+		sb.append(dp[0][N - 1]).append("\n");
+	}
+
+	private static int game(int depth, int left, int right) {
+		if (right < left) return 0;
+		if (dp[left][right] != 0) return dp[left][right];
+
+		if (depth % 2 == 0) {
+			return dp[left][right] = Math.max(game(depth + 1, left + 1, right) + cards[left]
+					, game(depth + 1, left, right - 1) + cards[right]);
+		} else {
+			return dp[left][right] = Math.min(game(depth + 1, left + 1, right)
+					, game(depth + 1, left, right - 1));
+		}
+	}
+
+}
+```