feat(ko): add the Korean online edition (#2006)

* feat(ko): add the complete Korean online edition

* Use UTF-8 for Python CI output on Windows

* Remove print-book promotion from the Korean site

* fix(ko): preserve emphasis before Korean particles

ko/codes/java/chapter_dynamic_programming/climbing_stairs_dfs.java

@@ -0,0 +1,31 @@
+/**
+ * File: climbing_stairs_dfs.java
+ * Created Time: 2023-06-30
+ * Author: krahets ([email protected])
+ */
+
+package chapter_dynamic_programming;
+
+public class climbing_stairs_dfs {
+    /* 탐색 */
+    public static int dfs(int i) {
+        // dp[1]과 dp[2]는 이미 알고 있으므로 해당 값을 반환한다
+        if (i == 1 || i == 2)
+            return i;
+        // dp[i] = dp[i-1] + dp[i-2]
+        int count = dfs(i - 1) + dfs(i - 2);
+        return count;
+    }
+
+    /* 계단 오르기: 탐색 */
+    public static int climbingStairsDFS(int n) {
+        return dfs(n);
+    }
+
+    public static void main(String[] args) {
+        int n = 9;
+
+        int res = climbingStairsDFS(n);
+        System.out.println(String.format("%d개의 계단을 오르는 방법은 총 %d가지이다", n, res));
+    }
+}