diff --git a/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num2134.java b/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num2134.java
new file mode 100644
index 0000000..58e004b
--- /dev/null
+++ b/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num2134.java
@@ -0,0 +1,37 @@
+package com.cool.ling_cha_mount.sliding_windows;
+
+/**
+ * Created with IntelliJ IDEA.
+ *
+ * @Author: Cool
+ * @Date: 2024/10/14/11:10
+ * @Description: 2134. 最少交换次数来组合所有的 1 II
+ * Level 4
+ * Hard 2
+ * Score 1748
+ */
+public class Num2134 {
+
+    public int minSwaps(int[] nums) {
+        int count = 0;
+        for (int num : nums) {
+            count += num;
+        }
+        int num = 0;
+        for (int i = 0; i < count; i++) {
+            num += nums[i];
+        }
+        int res = num;
+        for (int i = 0; i < nums.length; i++) {
+            num -= nums[i];
+            int right = i + count;
+            if (right >= nums.length) {
+                right -= nums.length;
+            }
+            num += nums[right];
+            res = Math.max(res, num);
+        }
+        return count - res;
+    }
+
+}