Merge pull request #1177 from AlgorithmWithGod/ksinji

[20251020] PGM / LV2 / 땅따먹기 / 강신지

Author: ShinHeeEul

ksinji/202510/20 PGM 땅따먹기.md

@@ -0,0 +1,17 @@
+```java
+class Solution {
+    public int solution(int[][] land) {
+        int n = land.length;
+        int a = land[0][0], b = land[0][1], c = land[0][2], d = land[0][3];
+
+        for (int i = 1; i < n; i++) {
+            int na = land[i][0] + Math.max(Math.max(b, c), d);
+            int nb = land[i][1] + Math.max(Math.max(a, c), d);
+            int nc = land[i][2] + Math.max(Math.max(a, b), d);
+            int nd = land[i][3] + Math.max(Math.max(a, b), c);
+            a = na; b = nb; c = nc; d = nd;
+        }
+        return Math.max(Math.max(a, b), Math.max(c, d));
+    }
+}
+```