第十四周项目3多科成绩单

/*
 *Copyright(c)2014,烟台大学计算机学院
 *Allrights reserved.
 *文件名称:MADE2.cpp
 *作    者:张生栋
 *完成日期:2014年12月1日
 *问题描述: 略
 *输入描述：略
 *输出描述：略
 *版 本 号：v1.0
 *
*/
#include<iostream>
#include<string>
using namespace std;
void input(double s[][4],int n);
void output(double s[][4],int n);
double max(double s[][4],int n,int i);
double min(double s[][4],int n,int i);
double avg(double s[][4],int n,int i);
int main()
{
    int i,num;
    string temp;
    double score[100][4];
   string course[4]= {"高等数学","英语","C++","总分"};
    cout<<"输入学生人数：";
    cin>>num;
    input(score,num);
    output(score,num);
    for(i=0; i<4; ++i)
    {
        cout<<course[i]<<"的最高成绩是"<<max(score,num,i)<<"     ";
        cout<<"最低成绩是"<<min(score,num,i)<<"      ";
        cout<<"平均成绩是"<<avg(score,num,i)<<"      ";
        cout<<endl;
    }

    return 0;
}

void input(double s[][4],int n)
{
    cout<<"输入学生成绩"<<endl;
    for(int i=0; i<n; ++i)
    {
        cin>>s[i][0]>>s[i][1]>>s[i][2];
        s[i][3]=s[i][0]+s[i][1]+s[i][2];
    }
}

void output(double s[][4],int n)
{
    cout<<"输入的学生成绩为："<<endl;
    cout<<"学号"<<"      "<<"高数"<<"      "<<"英语"<<"       "<<"C++"<<"       "<<"总分"<<endl;
    for(int i=0; i<n; ++i)
    {
        cout<<i<<"           "<<s[i][0]<<"       ";
        cout<<s[i][1]<<"        ";
        cout<<s[i][2]<<"        ";
        cout<<s[i][3]<<endl;
    }
}
double max(double s[][4],int n,int j)
{
    double m=s[0][j];
    for(int i=1; i<n; ++i)
        if (m<s[i][j])
            m=s[i][j];
    return m;
}
double min(double s[][4],int n,int j)
{
    double m=s[0][j];
    for(int i=1; i<n; ++i)
        if (m>s[i][j])
            m=s[i][j];
    return m;
}
double avg(double s[][4],int n,int j)
{
    double sum=s[0][j];
    for(int i=1; i<n; ++i)
        sum+=s[i][j];
    return sum/n;
}