添加计算平均值的C++程序，排除最大值和最小值

Author: tkzzzzzz6

luogu/ProblemSet/P5726/1.cpp

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+#include<iostream>
+#include<algorithm>
+#include<cmath>
+#include<iomanip>
+#include<limits.h>
+#include<string>
+using namespace std;
+
+int main()
+{
+    int n;
+    cin >> n;
+    int max = 0,min = INT16_MAX;
+    int sum = 0;
+    for(int i = 0;i<n;i++)
+    {
+        int x;
+        cin >> x;
+        sum += x;
+        if(x > max)max = x;
+        if(x < min)min = x;
+    }
+    sum -= (max + min);
+    int average = sum / (n-2);
+    cout << fixed << setprecision(2) << average << endl;
+
+    return 0;
+}