[백준 14925] 목장 건설하기 - DP

Author: HiiWee

hoseok/week78/Boj14925.java

@@ -0,0 +1,30 @@
+import java.util.*;
+import java.io.*;
+
+class Main {
+    public static void main(String[] args) throws Exception {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int m = Integer.parseInt(st.nextToken());
+        int n = Integer.parseInt(st.nextToken());
+        int[][] board = new int[m + 1][n + 1];
+        int[][] dp = new int[m + 1][n + 1];
+        
+        int answer = 0;
+        for (int i = 1; i <= m; i++) {
+            st = new StringTokenizer(br.readLine());
+            for (int j = 1; j <= n; j++) {
+                board[i][j] = Integer.parseInt(st.nextToken());
+                if (board[i][j] == 0) {
+                    dp[i][j] = Math.min(Math.min(dp[i - 1][j], dp[i][j - 1]), dp[i - 1][j - 1]) + 1;
+                    answer = Math.max(dp[i][j], answer);
+                }
+            }
+        }
+
+        bw.write(Integer.toString(answer));
+        bw.flush();
+        bw.close();
+    }
+}