题目：https://pintia.cn/problem-sets/994805260223102976/problems/994805262303477760

vs2010里面没有round函数，需要自己写

  1. double round(double r)
  2. {
  3.     return (r > 0.0) ? floor(r + 0.5) : ceil(r - 0.5);
  4. }
  5. //rount(-2.1) = -2, round(-2.6) = -3

代码

  1. #include<cstdio>
  2. #include<iostream>
  3. #include<cmath>
  4. #include<vector>
  5. #include<algorithm>
  6. using namespace std;
  7. double round(double r)
  8. {
  9.     return (r > 0.0) ? floor(r + 0.5) : ceil(r - 0.5);
  10. }
  11. int main(){
  12.     int n, m;
  13.     scanf("%d%d", &n, &m);
  14.     int g1, g2;
  15.     int temp;
  16.     for(int i = 0; i < n; i++){
  17.         vector<int> newvec;
  18.         scanf("%d", &g2);
  19.         for(int j = 0; j < n - 1; j++){
  20.             scanf("%d", &temp);
  21.             if(temp >= 0 && temp <= m){
  22.                 newvec.push_back(temp);
  23.             }
  24.         }
  25.         sort(newvec.begin(), newvec.end());
  26.         newvec.erase(newvec.begin());
  27.         reverse(newvec.begin(), newvec.end());
  28.         newvec.erase(newvec.begin());
  29.         int sum = 0, count = 0;
  30.         for(int j = 0; j < newvec.size(); j++){
  31.             sum += newvec[j];
  32.             count++;
  33.         }
  34.         g1 = sum / count;
  35.         printf("%d\n", (int) round((g1 + g2)*1.0/2));
  36.     }
  37.     return 0;
  38. }