[20250925] BOJ / G5 / 헹상 팀시 / 김민진

Author: zinnnn37

zinnnn37/202509/25 BOJ G5 행성 탐사.md

@@ -0,0 +1,74 @@
+```java
+import java.io.*;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.StringTokenizer;
+
+public class BJ_5549_행성_탐사 {
+
+	private static final Map<Character, Integer> MAP = new HashMap<>();
+
+	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             M, N, K;
+	private static int[][][] dp;
+
+	// Java 8
+	static {
+		MAP.put('J', 0);
+		MAP.put('O', 1);
+		MAP.put('I', 2);
+	}
+
+	public static void main(String[] args) throws IOException {
+		init();
+		sol();
+	}
+
+	private static void init() throws IOException {
+		st = new StringTokenizer(br.readLine());
+		M  = Integer.parseInt(st.nextToken());
+		N  = Integer.parseInt(st.nextToken());
+		K  = Integer.parseInt(br.readLine());
+
+		dp = new int[M + 1][N + 1][3]; // J, O, I일때 누적합
+
+		for (int i = 1; i <= M; i++) {
+			String s = br.readLine();
+			for (int j = 1; j <= N; j++) {
+				char c = s.charAt(j - 1);
+
+				// prefix
+				dp[i][j][0] = dp[i - 1][j][0] + dp[i][j - 1][0] - dp[i - 1][j - 1][0];
+				dp[i][j][1] = dp[i - 1][j][1] + dp[i][j - 1][1] - dp[i - 1][j - 1][1];
+				dp[i][j][2] = dp[i - 1][j][2] + dp[i][j - 1][2] - dp[i - 1][j - 1][2];
+
+				dp[i][j][MAP.get(c)]++;
+			}
+		}
+	}
+
+	private static void sol() throws IOException {
+		while (K-- > 0) {
+			st = new StringTokenizer(br.readLine());
+
+			int x1 = Integer.parseInt(st.nextToken());
+			int y1 = Integer.parseInt(st.nextToken());
+			int x2 = Integer.parseInt(st.nextToken());
+			int y2 = Integer.parseInt(st.nextToken());
+
+			for (int i = 0; i < 3; i++) {
+				sb.append(dp[x2][y2][i] - dp[x1 - 1][y2][i] - dp[x2][y1 - 1][i] + dp[x1 - 1][y1 - 1][i]).append(" ");
+			}
+			sb.append("\n");
+		}
+		bw.write(sb.toString());
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+
+}
+```