From 79250576771fbf552bc112baf668d750756c1654 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=A7=80=EC=84=A0=EC=95=84?= <jisuna314@gmail.com>
Date: Sun, 22 Dec 2024 00:49:22 +0900
Subject: [PATCH] =?UTF-8?q?Add=20#7=20=EB=93=B1=EA=B5=A3=EA=B8=B8=20-=20?=
 =?UTF-8?q?=EC=A7=80=EC=84=A0=EC=95=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...\354\247\200\354\204\240\354\225\204.java" | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 "dp/\353\223\261\352\265\243\352\270\270/\354\247\200\354\204\240\354\225\204.java"

diff --git "a/dp/\353\223\261\352\265\243\352\270\270/\354\247\200\354\204\240\354\225\204.java" "b/dp/\353\223\261\352\265\243\352\270\270/\354\247\200\354\204\240\354\225\204.java"
new file mode 100644
index 0000000..b5a0011
--- /dev/null
+++ "b/dp/\353\223\261\352\265\243\352\270\270/\354\247\200\354\204\240\354\225\204.java"
@@ -0,0 +1,30 @@
+class Solution {
+    private static final int NUM = 1000000007;
+    int[][] dp;
+    public int solution(int m, int n, int[][] puddles) {
+        dp = new int[m][n];
+        // 초기값 설정
+        for (int i = 0; i < m; i++) {
+            for (int j = 0; j < n; j++) {
+                dp[i][j] = -1;
+            }
+        }
+        // 웅덩이 설정
+        for (int[] puddle : puddles) {
+            dp[puddle[0] - 1][puddle[1] - 1] = 0;
+        }
+        dp[0][0] = 1;
+        return dfs(m-1, n-1);
+    }
+
+    public int dfs(int x, int y) {
+        if (x < 0 || y < 0) {
+            return 0;
+        }
+        if (dp[x][y] != -1) {
+            return dp[x][y];
+        }
+        dp[x][y] = (dfs(x - 1, y) + dfs(x, y-1)) % NUM;
+        return dp[x][y];
+    }
+}