solution

总成绩= （老师成绩 + 同学去掉最高分去掉最低分的平均分）/2，其中总成绩四舍五入取整

#include<iostream>
#include<algorithm>
using namespace std;
int main(){
	int n, m, worst, better, sum, g, x, cnt;
	scanf("%d%d", &n, &m);
	for(int i = 0; i < n; i++){
		scanf("%d", &g);
		worst = m + 1;
		better = -1;
		sum = cnt = 0;
		for(int j = 0; j < n - 1; j++){
			scanf("%d", &x);
			if(x >= 0 && x <= m){
				cnt++;
				sum += x;
				worst = min(worst, x);
				better = max(better, x);
			}
		}
		printf("%d\n", ((sum - worst - better) / (cnt - 2) + g + 1) / 2);
	}
	return 0;
}