Create 1619.cpp

LeetCode/1619.cpp

@@ -0,0 +1,14 @@
+class Solution {
+public:
+    double trimMean(vector<int>& arr) {
+        int n = arr.size();
+        int toRemove = n / 20;
+        sort(arr.begin(), arr.end());
+
+        int sum = 0;
+        for (int i = toRemove; i < n - toRemove; i++) {
+            sum += arr[i];
+        }
+        return (double)sum / (n - toRemove - toRemove);
+    }
+};