diff --git a/QUSTOJ/1534.cpp b/QUSTOJ/1534.cpp
new file mode 100644
index 0000000..6aae474
--- /dev/null
+++ b/QUSTOJ/1534.cpp
@@ -0,0 +1,30 @@
+#include <cstdio>
+#include <cstring>
+#include <cstdlib>
+#include <vector>
+#include <algorithm>
+using namespace std;
+
+int main()
+{
+    int n;
+    while(scanf("%d",&n)==1)
+    {
+        vector<double> vec;
+        double tmp;
+        for(int i=0;i<n;i++)
+        {
+            scanf("%lf",&tmp);
+            vec.push_back(tmp);
+        }
+        sort(vec.begin(),vec.end());
+        double sum=0;
+        for(int i=1;i<n-1;i++)
+        {
+            sum+=vec.at(i);
+        }
+        sum=sum/(n-2);
+        printf("%.2f\n",sum);
+    }
+    return 0;
+}