题解

#include<bits/stdc++.h>
using namespace std;
string grade_lst[9] = {};
int lst[9][101] = {};
int main(){
    int n;
    cin >> n;
    for (int i = 1 ; i <= n ; i++)
    	for (int j = 1 ; j <= 8 ; j++)
    	    cin >> lst[j][i];
    for (int i = 1 ; i <= 8 ; i++){
    	int max = 0 ,min = 101 ,sum = 0;
    	for (int j = 1 ; j <= n ; j++){  //求最大最小值
            if (lst[i][j] > max)
                max = lst[i][j];
            if (lst[i][j] < min)
                min = lst[i][j];
            sum += lst[i][j];
        }
        double average_score = double(sum - max - min) / (n - 2);  //求平均值
        if (average_score > 95)  //判断等级
            grade_lst[i] = "A";
        else if (average_score > 90)
            grade_lst[i] = "B";
        else if (average_score > 80)
            grade_lst[i] = "C";
        else if (average_score > 70)
            grade_lst[i] = "D";
        else if (average_score > 60)
            grade_lst[i] = "E";
        else if (average_score > 30)
            grade_lst[i] = "F";
        else 
            grade_lst[i] = "G";
    }
    for (int i = 1 ; i <= 8 ; i++)
        cout << grade_lst[i] << " ";
    return 0;
}