浙江大学PAT---Basic Level---1004----成绩排名

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace PAT_1004
{

class Program
{
struct Stu_Info
{
public string name;
public string school_number;
public int score;
};

static void Main(string[] args)
{
Console.WriteLine("请输入学生人数:");
int num_stu;
num_stu=int.Parse(Console.ReadLine());

Stu_Info[] students = new Stu_Info[num_stu];
string inputs;
for (int i = 0; i < num_stu; i++)
{
inputs = Console.ReadLine();
students[i]=GetStuInfo(inputs);
}
int[] index=GetHighLowScore(students);
Console.WriteLine("{0} {1}", students[index[1]].name, students[index[1]].school_number);
Console.WriteLine("{0} {1}", students[index[0]].name, students[index[0]].school_number);

Console.ReadKey();
}

/// <summary>
/// 从输入信息中获取学生信息
/// </summary>
/// <param name="info">输入信息</param>
/// <returns>返回学生信息</returns>
private static Stu_Info GetStuInfo(string info)
{
Stu_Info stu;
int[] index = new int[2];
for (int i = 0; i < info.Length; i++)
{
if (info[i] == ' ')
{
if (index[0] == 0)
{
index[0] = i;
}
else
{
index[1] = i;
}
}
}
stu.name = info.Remove(index[0]);
info = info.Remove(0, index[0]+1);
stu.school_number = info.Remove(index[1] - index[0]-1);
info = info.Remove(0, index[1] - index[0]);
stu.score = Int32.Parse(info);

return stu;
}

/// <summary>
/// 获取最高分和最低分
/// </summary>
/// <param name="students">学生信息</param>
/// <returns></returns>
private static int[] GetHighLowScore(Stu_Info[] students)
{
int[] index = new int[2];
for (int i = 1; i < students.Length; i++)
{
if (students[i].score < students[index[0]].score)
{
index[0] = i;
}
if (students[i].score > students[index[1]].score)
{
index[1] = i;
}
}
return index;
}
}
}