C++STL案例-评委打分

//--------案例描述----------- //有5名选手：选手ABCDE，10名评委分别对每一名选手打分，去除最高分，去除最低分，取平均分 //--------实现步骤------------ //1.创建五名选手，放到vector容器中 //2.遍历vector容器，取出来每一个选手，执行for循环，可以把10个评分打分存到deque容器中 //sort算法对deque容器分数排序，累加总分 //获取平均分 #include <iostream> #include <vector> #include <algorithm> #include <deque> #include <ctime> #include <string> using namespace std; class Person { public: Person(string name, double score) { m_name = name; m_score = score; } string m_name; double m_score; }; void createPerson(vector<Person>& v) { string nameSeed = "ABCDE"; for (int i = 0; i < nameSeed.size(); i++) { string str = "选手"; str += nameSeed[i]; Person p(str, 0); v.push_back(p); } } //打分 void setScore(vector<Person>& v) { for (vector<Person>::iterator it = v.begin(); it != v.end(); ++it) { //将评委的分数，放入到deque容器中 deque<int>d; for (int i = 0; i < 10; ++i) { int score = rand() % 41 + 60; d.push_back(score); } /*cout << "选手： " << it->m_name << " 打分：" << it->m_score << endl; for (deque<int>::iterator dit = d.begin(); dit != d.end(); ++dit) { cout << *dit << " "; }*/ //进行排序，然后去除最高分最低分 sort(d.begin(), d.end()); //尾删 d.pop_back(); //头删 d.pop_front(); double sum = 0; for (deque<int>::iterator dit = d.begin(); dit != d.end(); ++dit) { sum += *dit; } sum /= d.size(); it->m_score = sum; } } class Print { public: void operator()(Person& p)const { cout << "姓名：" << p.m_name << " 平均分：" << p.m_score << endl; //cout << p.m_name << p.m_score << endl; } }; void print(Person& p) { cout << "姓名： " << p.m_name << " 平均分" << p.m_score << endl; } void showScore(vector<Person>& v) { for_each(v.begin(), v.end(), print); /*for (vector<Person>::iterator it = v.begin(); it != v.end(); ++it) { cout << "姓名： " << it->m_name << " 平均分" << it->m_score << endl; }*/ } int main() { srand((unsigned int)time(NULL)); vector<Person>v; createPerson(v); setScore(v); //显示最后得分 showScore(v); return 0; }

C++STL案例-评委打分