diff --git a/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num1750.java b/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num1750.java
new file mode 100644
index 0000000..57c5ab9
--- /dev/null
+++ b/src/main/java/com/cool/ling_cha_mount/sliding_windows/Num1750.java
@@ -0,0 +1,27 @@
+package com.cool.ling_cha_mount.sliding_windows;
+
+/**
+ * Created with IntelliJ IDEA.
+ *
+ * @Author: Cool
+ * @Date: 2024/11/04/15:54
+ * @Description: 1750. 删除字符串两端相同字符后的最短长度
+ */
+public class Num1750 {
+    public int minimumLength(String s) {
+        int left = 0;
+        int right = s.length() - 1;
+        while (left < right && s.charAt(left) == s.charAt(right)) {
+            char c=s.charAt(left);
+            left++;
+            right--;
+            while (left <= right && s.charAt(left) == c) {
+                left++;
+            }
+            while (left <= right && s.charAt(right) == c) {
+                right--;
+            }
+        }
+        return right - left + 1;
+    }
+}