[Week04] BOJ 14925: 목장 건설하기

personal/JAEHEE25/BOJ/BOJ2156.java

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+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+class BOJ2156 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int N = Integer.parseInt(br.readLine());
+        int[] wines = new int[N+1];
+        for (int i = 1; i <= N; i++) {
+            wines[i] = Integer.parseInt(br.readLine());
+        }
+
+        int[] dp = new int[N+1]; //dp[i] = i까지 최대로 마실 수 있는 포도주의 양
+        for (int i = 1; i <= N; i++) {
+            if (i == 1) dp[1] = wines[1];
+            else if (i == 2) dp[2] = wines[1] + wines[2];
+            else dp[i] = Math.max(dp[i-1], wines[i] + Math.max(dp[i-2], dp[i-3] + wines[i-1]));
+        }
+
+        System.out.println(dp[N]);
+
+    }
+}

weekly/week04/BOJ_14925_목장건설하기/JAEHEE25.java

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+package week04.BOJ_14925_목장건설하기;
+
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+class BOJ14925 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int M = Integer.parseInt(st.nextToken());
+        int N = Integer.parseInt(st.nextToken());
+        int[][] land = new int[M][N];
+        int[][] dp = new int[M+1][N+1];
+        int L = 0;
+
+        for (int i = 0; i < M; i++) {
+            st = new StringTokenizer(br.readLine());
+            for (int j = 0; j < N; j++) {
+                land[i][j] = Integer.parseInt(st.nextToken());
+            }
+        }
+
+        int answer = 0;
+        for (int i = 1; i <= M; i++) {
+            for (int j = 1; j <= N; j++) {
+                if (land[i-1][j-1] == 0) {
+                    dp[i][j] = Math.min(Math.min(dp[i-1][j], dp[i][j-1]), dp[i-1][j-1]) + 1; //위, 왼쪽, 왼쪽 위
+                    answer = Math.max(dp[i][j], answer);
+                }
+            }
+        }
+        System.out.println(answer);
+    }
+}