add 2148

fishercoder1534 · fishercoder1534 · commit ed1d5521863a · 2022-01-22T20:03:47.000-08:00
diff --git a/README.md b/README.md
@@ -8,6 +8,7 @@ _If you like this project, please leave me a star._ &#9733;
 
 |  #  |      Title     |   Solutions   | Video  | Difficulty  | Tag                  
 |-----|----------------|---------------|--------|-------------|-------------
+|2148|[Count Elements With Strictly Smaller and Greater Elements](https://leetcode.com/problems/count-elements-with-strictly-smaller-and-greater-elements/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2148.java) ||Easy||
 |2144|[Minimum Cost of Buying Candies With Discount](https://leetcode.com/problems/minimum-cost-of-buying-candies-with-discount/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2144.java) ||Easy||
 |2139|[Minimum Moves to Reach Target Score](https://leetcode.com/problems/minimum-moves-to-reach-target-score/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2139.java) ||Medium||
 |2138|[Divide a String Into Groups of Size k](https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/)|[Java](../master/src/main/java/com/fishercoder/solutions/_2138.java) ||Easy||
diff --git a/src/main/java/com/fishercoder/solutions/_2148.java b/src/main/java/com/fishercoder/solutions/_2148.java
@@ -0,0 +1,25 @@
+package com.fishercoder.solutions;
+
+import java.util.TreeMap;
+
+public class _2148 {
+    public static class Solution1 {
+        public int countElements(int[] nums) {
+            TreeMap<Integer, Integer> treeMap = new TreeMap<>();
+            for (int num : nums) {
+                treeMap.put(num, treeMap.getOrDefault(num, 0) + 1);
+            }
+            int ans = 0;
+            int i = 0;
+            int len = treeMap.size();
+            for (int key : treeMap.keySet()) {
+                if (i != 0 && i != len - 1) {
+                    ans += treeMap.get(key);
+                }
+                i++;
+            }
+            return ans;
+        }
+    }
+}
+}
