1 案例描述
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2 实现步骤
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#include <iostream>
#include <string>
#include <vector>
#include <deque>
#include <algorithm>
#include <ctime>
using namespace std;
/*
有5名选手:选手ABCDE,10个评委分别对每一名选手打分,
去除最高分,去除评委中最低分,取平均分。
*/
//选手类
class Person {
public:
Person(string name, int score) {
this->m_Name = name;
this->m_Score = score;
}
string m_Name; //姓名
int m_Score; //平均分
};
//实参需要修改的话,需要用形参引用的方式传递参数
void createPerson(vector<Person> &v) {
string nameSeed = "ABCDE";
for (int i = 0; i < 5; i++) {
string name = "选手";
name += nameSeed[i];
int score = 0;
Person p(name,score);
//将创建的Person对象放入到容器中
v.push_back(p);
}
}
//打分
void setscore(vector<Person> &v) {
//遍历选手
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; //60~100
d.push_back(score);
}
//选手打分输出
/*cout << "选手:" << it->m_Name << "打分:" << endl;
for (deque<int>::iterator dit = d.begin(); dit != d.end(); dit++) {
cout << *dit << " ";
}
cout << endl;*/
//找最高最低分之前先排序
sort(d.begin(),d.end());
//去除最高分和最低分,去两端
d.pop_back();
d.pop_front();
//取平均分
int sum = 0;
for (deque<int>::iterator dit = d.begin(); dit != d.end(); dit++) {
sum += *dit; //累加每个评委的分数
}
int avg = sum / d.size(); //总分除以个数
//将平均分赋值给选手
it->m_Score = avg;
//cout << "平均分为:" << it->m_Score << endl;
}
}
//显示平均分
void showScore(vector<Person> &v) {
for (vector<Person>::iterator it = v.begin(); it != v.end(); it++) {
cout << "姓名:" << it->m_Name << "\t平均分:" << it->m_Score << endl;
}
}
int main() {
//随机数种子
srand((unsigned)time(NULL));
//1.创建5名选手
vector<Person> v; //存放选手的容器
createPerson(v);
//测试
/*for (vector<Person>::iterator it = v.begin(); it != v.end(); it++) {
cout << "姓名:" << (*it).m_Name << "分数:" << (*it).m_Score << endl;
}*/
//2.给5名选手打分
setscore(v);
//3.显示最后得分
showScore(v);
system("pause");
return 0;
}
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