diff --git a/src/其他/abwl/q1/Main.java b/src/其他/abwl/q1/Main.java
deleted file mode 100644
index 08b275a..0000000
--- a/src/其他/abwl/q1/Main.java
+++ /dev/null
@@ -1,39 +0,0 @@
-package 其他.abwl.q1;
-
-import java.util.*;
-
-public class Main {
-
-    public static void main(String[] args) {
-        Scanner in = new Scanner(System.in);
-        String[] s = in.nextLine().split(" ");
-        if (s.length < 1) {
-            return;
-        }
-        int k = Integer.parseInt(s[0]);
-        if (k == 0) {
-            return;
-        }
-        List<Integer> nums = new ArrayList<>();
-        for (int i = 1; i < s.length; i++) {
-            nums.add(Integer.parseInt(s[i]));
-        }
-        in.close();
-
-        int sp = nums.size() / k;
-
-        Map<Integer, Integer> map = new HashMap<>();
-        for (int i = 0; i < nums.size(); i++) {
-            if (map.containsKey(nums.get(i))) {
-                int total = map.get(nums.get(i)) + 1;
-                if (total > sp) {
-                    System.out.print(nums.get(i));
-                    return;
-                }
-                map.put(nums.get(i), total);
-            } else {
-                map.put(nums.get(i), 1);
-            }
-        }
-    }
-}
diff --git a/src/其他/丢玻璃球/Solution.java b/src/其他/丢玻璃球/Solution.java
new file mode 100644
index 0000000..d374624
--- /dev/null
+++ b/src/其他/丢玻璃球/Solution.java
@@ -0,0 +1,33 @@
+package 其他.丢玻璃球;
+
+import java.util.Scanner;
+
+/**
+ * F(N) = min{ max(1(碎了), F(N - 1) + 1(没碎)), max(2, F(N - 2) + 1), max(3, F(N - 3) + 1), …… , max(N - 1, F(1))
+ */
+public class Solution {
+    public static void main(String[] args) {
+        int N = 0;
+        Scanner scanner = new Scanner(System.in);
+        while (N < 1) {
+            N = scanner.nextInt();
+        }
+
+        int[] dp = new int[N + 1];
+        dp[0] = 0;
+        dp[1] = 1;
+
+        for (int i = 2; i <= N; ++i) {
+            int min = i;
+            for (int j = 1; j < i; ++j) {
+                int tmp = Math.max(j, dp[i - j] + 1);
+                if (tmp < min) {
+                    min = tmp;
+                }
+            }
+            dp[i] = min;
+        }
+
+        System.out.println(dp[N]);
+    }
+}
diff --git a/src/其他/abwl/q2/Main.java b/src/其他/迪杰斯特拉/Main.java
similarity index 99%
rename from src/其他/abwl/q2/Main.java
rename to src/其他/迪杰斯特拉/Main.java
index 08c5c8d..0d18f5e 100644
--- a/src/其他/abwl/q2/Main.java
+++ b/src/其他/迪杰斯特拉/Main.java
@@ -1,4 +1,4 @@
-package 其他.abwl.q2;
+package 其他.迪杰斯特拉;
 
 import java.util.*;