031402612李坤隆
031402629张建华
要求
输入（程序随机生成）
30个老师（包含学生上限）和100个学生（包含绩点）
每个学生5个志愿导师
导师可以带不大于其要求上限的学生数
输出
导师学生间的匹配信息
未被分配到学生的导师
未被导师选中的学生
实现方案
采用mysql存取数据
使用java编写程序
实现算法
数据库字段描述
- 学生表
一开始想太多设计了一些多余的字段
- id为该学生的唯一标识
- mentor 为导师的id
- gpa 为绩点信息
- 导师表
有一些多余字段
id唯一标识一个导师
stu_num为导师设置的希望招生数
accepted_stu_num 为导师已同意的申请数
final_stu_num 为导师最终招到的学生数
- 志愿表
id 为学生的id
w1-w5为志愿1-志愿5（值为导师的id）
w1_statu-w5_statu为志愿1-志愿5当前的状态，0表示已被拒绝， 1表示已被同意
- 导师所带学生表
id 为导师id
stu1-stu8 为学生1-学生8的id，若没有则为空
相关代码段
- 主函数
public static void main(String[] args) {
//导师分配三步走
MentorDistribution mentorDistribution = new MentorDistribution();
/*
* 第一步，对所有学生进行分配，若只有一个老师同意则直接分配，若多个老师同意则分配给志愿最高的老师，
* 没有老师同意的留到第二次分配（满足老师与学生双向互选的需求）
*/
mentorDistribution.firstStep();
/*
* 第二步，对剩余学生按绩点进行排序，从第一个学生开始，依次检索第1-5志愿导师，若有导师招生未满则分配给
* 该导师(满足绩点优先的需求)
*/
mentorDistribution.secondeStep();
/*
* 第三步，对老师按已经招收的学生数进行排序（优先分配给已招生数较少的老师），将剩余学生依次分配给
* 尚未招满的老师（满足分配尽量平均的需求）
*/
mentorDistribution.thirdStep();
//获取每个导师带的学生数据
List stuOfMentors = mentorDistribution.getMentorStudents();
//将结果存入数据库
DBUtils.getInstance().insertStuOfMentors(stuOfMentors);
System.out.println("--------------end--------------");
} - MentorDistribution类
public class MentorDistribution {
//数据库工具类
private DBUtils dbUtils;
//Wish为志愿类
private List wishes;
public MentorDistribution() {
dbUtils = DBUtils.getInstance();
wishes = dbUtils.getWishes();
}
/*
* 第一步，对所有学生进行分配，若只有一个老师同意则直接分配，若多个老师同意则分配给志愿最高的老师，
* 没有老师同意的留到第二次分配（满足老师与学生双向互选的需求）
*/
public void firstStep() {
int finalStuNum;
//遍历每个学生的志愿
for(Wish wish : wishes){
if(wish.getW1_statu() == 1){
//将学生的导师id存入数据库
dbUtils.setMentor(wish.getId(), wish.getW1());
//老师已招生数加1
finalStuNum = dbUtils.getFinalStuNum(wish.getW1()) + 1;
//更新老师已招生数
dbUtils.setFinalStuNum(wish.getW1(), finalStuNum);
}else if(wish.getW2_statu() == 1){
dbUtils.setMentor(wish.getId(), wish.getW2());
finalStuNum = dbUtils.getFinalStuNum(wish.getW2()) + 1;
dbUtils.setFinalStuNum(wish.getW2(), finalStuNum);
}else if(wish.getW3_statu() == 1){
dbUtils.setMentor(wish.getId(), wish.getW3());
finalStuNum = dbUtils.getFinalStuNum(wish.getW3()) + 1;
dbUtils.setFinalStuNum(wish.getW3(), finalStuNum);
}else if(wish.getW4_statu() == 1){
dbUtils.setMentor(wish.getId(), wish.getW4());
finalStuNum = dbUtils.getFinalStuNum(wish.getW4()) + 1;
dbUtils.setFinalStuNum(wish.getW4(), finalStuNum);
}else if(wish.getW4_statu() == 1){
dbUtils.setMentor(wish.getId(), wish.getW5());
finalStuNum = dbUtils.getFinalStuNum(wish.getW5()) + 1;
dbUtils.setFinalStuNum(wish.getW5(), finalStuNum);
}else{
continue;
}
}
}
/*
* 第二步，对剩余学生按绩点进行排序，从第一个学生开始，依次检索第1-5志愿导师，若有导师招生未满则分配给
* 该导师(满足绩点优先的需求)
*/
public void secondeStep() {
//从数据库获取学生信息
List students = dbUtils.getStudents();
Collections.sort(students);
for(Student student : students){
int id = student.getId();
Wish wish = null;
//获取该学生志愿
for(Wish w : wishes){
if(w.getId() == id){
wish = w;
break;
}
}
int finalStuNum;
int stuNum;
//获取志愿一至五的导师ID
List mtIds = new ArrayList<>();
mtIds.add(wish.getW1());
mtIds.add(wish.getW2());
mtIds.add(wish.getW3());
mtIds.add(wish.getW4());
mtIds.add(wish.getW5());
for(int mtId : mtIds){
//获取已经招收的学生数和导师设置的希望的招生数
finalStuNum = dbUtils.getFinalStuNum(mtId);
stuNum = dbUtils.getStuNum(mtId);
//判断导师招生数是否已满，未满则分配给该导师
if(stuNum > finalStuNum){
dbUtils.setMentor(student.getId(), mtId);
finalStuNum = finalStuNum + 1;
dbUtils.setFinalStuNum(mtId, finalStuNum);
break;
}
}
}
}
/*
* 第三步，对老师按已经招收的学生数进行排序（优先分配给已招生数较少的老师），将剩余学生依次分配给
* 尚未招满的老师（满足分配尽量平均的需求）
*/
public void thirdStep() {
//获取导师和学生信息
List mentors = dbUtils.getMentors();
List students = dbUtils.getStudents();
for(Student student : students){
//对导师按已招生数进行排序
Collections.sort(mentors);
for(Mentor mentor : mentors){
int stuNum = mentor.getStuNum();
int finalStuNum = mentor.getFinalStuNum();
//若已招收的人数比导师设置的希望招生数小，则分配该学生给该导师
if(finalStuNum < stuNum){
dbUtils.setMentor(student.getId(), mentor.getId());
dbUtils.setFinalStuNum(mentor.getId(), (mentor.getFinalStuNum()+1));
mentor.setFinalStuNum(mentor.getFinalStuNum()+1);
break;
}
}
}
}
//从数据库的学生表获取学生的导师数据，整理输出到数据库的导师所带学生表
public List getMentorStudents() {
List students = dbUtils.getAllStudents();
//StuOfMentor为导师所带学生类（对应数据库的导师所带学生表）
List stuOfMentors = new ArrayList();
for(int i = 1;i < 31;i++){
StuOfMentor stuOfMentor = new StuOfMentor(i);
for(Student student : students){
if(student.getMentorId() == i){
//如果该学生是导师i的学生，则将他添加到该导师的学生列表中
stuOfMentor.addStuId(student.getId());
}
}
stuOfMentors.add(stuOfMentor);
}
return stuOfMentors;
}
}
测试数据及结果
输入数据
- 学生数据
+----+------+
| id | gpa |
+----+------+
| 0 | 0.28 |
| 1 | 3.14 |
| 2 | 4.1 |
| 3 | 4.84 |
| 4 | 3.09 |
| 5 | 1.92 |
| 6 | 1.55 |
| 7 | 3.51 |
| 8 | 0.41 |
| 9 | 0.31 |
| 10 | 2.08 |
| 11 | 1 |
| 12 | 4.17 |
| 13 | 2.61 |
| 14 | 4.23 |
| 15 | 4.14 |
| 16 | 3.73 |
| 17 | 0.37 |
| 18 | 2.21 |
| 19 | 3.8 |
| 20 | 0.02 |
| 21 | 2.84 |
| 22 | 3.64 |
| 23 | 0.72 |
| 24 | 2.09 |
| 25 | 3.12 |
| 26 | 2.8 |
| 27 | 2.4 |
| 28 | 3.83 |
| 29 | 3.89 |
| 30 | 4.72 |
| 31 | 2.74 |
| 32 | 3.4 |
| 33 | 2.71 |
| 34 | 4.95 |
| 35 | 3.93 |
| 36 | 2.53 |
| 37 | 2.89 |
| 38 | 0.34 |
| 39 | 0.45 |
| 40 | 0.82 |
| 41 | 1.9 |
| 42 | 2.93 |
| 43 | 3.17 |
| 44 | 2.2 |
| 45 | 0.7 |
| 46 | 2.78 |
| 47 | 2.34 |
| 48 | 1.71 |
| 49 | 3.75 |
| 50 | 4.86 |
| 51 | 1.62 |
| 52 | 0.57 |
| 53 | 1.16 |
| 54 | 1.76 |
| 55 | 1.21 |
| 56 | 1.26 |
| 57 | 1.13 |
| 58 | 1.32 |
| 59 | 2.22 |
| 60 | 2.03 |
| 61 | 2.71 |
| 62 | 2.17 |
| 63 | 0.41 |
| 64 | 1.83 |
| 65 | 1.12 |
| 66 | 0.89 |
| 67 | 1.63 |
| 68 | 1.99 |
| 69 | 0.02 |
| 70 | 1.07 |
| 71 | 3.11 |
| 72 | 0.58 |
| 73 | 2.37 |
| 74 | 2.65 |
| 75 | 3.71 |
| 76 | 3.51 |
| 77 | 4.47 |
| 78 | 4.92 |
| 79 | 3.68 |
| 80 | 3.67 |
| 81 | 4.85 |
| 82 | 2.2 |
| 83 | 3.84 |
| 84 | 0.46 |
| 85 | 3.31 |
| 86 | 3.83 |
| 87 | 1.44 |
| 88 | 2.21 |
| 89 | 2.57 |
| 90 | 3.89 |
| 91 | 0.08 |
| 92 | 2.68 |
| 93 | 3.96 |
| 94 | 1.37 |
| 95 | 3.47 |
| 96 | 0.89 |
| 97 | 1.27 |
| 98 | 3.02 |
| 99 | 3.29 |
+----+------+
- 导师（stu_num为导师希望的招生数）
+----+---------+
| id | stu_num |
+----+---------+
| 1 | 8 |
| 2 | 2 |
| 3 | 7 |
| 4 | 7 |
| 5 | 3 |
| 6 | 7 |
| 7 | 6 |
| 8 | 8 |
| 9 | 5 |
| 10 | 6 |
| 11 | 6 |
| 12 | 2 |
| 13 | 3 |
| 14 | 8 |
| 15 | 3 |
| 16 | 2 |
| 17 | 6 |
| 18 | 2 |
| 19 | 2 |
| 20 | 2 |
| 21 | 4 |
| 22 | 7 |
| 23 | 8 |
| 24 | 3 |
| 25 | 1 |
| 26 | 1 |
| 27 | 5 |
| 28 | 1 |
| 29 | 6 |
| 30 | 1 |
+----+---------+
- 志愿及每个志愿的状态（0：已拒绝，1：已同意）
+----+----+----+----+----+----+----------+----------+----------+----------+----------+
| id | w1 | w2 | w3 | w4 | w5 | w1_statu | w2_statu | w3_statu | w4_statu | w5_statu |
+----+----+----+----+----+----+----------+----------+----------+----------+----------+
| 0 | 17 | 2 | 19 | 7 | 26 | 0 | 1 | 1 | 0 | 1 |
| 1 | 1 | 17 | 27 | 11 | 28 | 0 | 0 | 0 | 1 | 0 |
| 2 | 6 | 8 | 9 | 12 | 29 | 0 | 1 | 1 | 0 | 1 |
| 3 | 20 | 6 | 25 | 29 | 15 | 0 | 0 | 1 | 0 | 0 |
| 4 | 17 | 5 | 24 | 27 | 12 | 0 | 0 | 1 | 0 | 0 |
| 5 | 16 | 18 | 3 | 9 | 27 | 1 | 0 | 0 | 1 | 0 |
| 6 | 1 | 20 | 6 | 23 | 10 | 0 | 1 | 0 | 0 | 0 |
| 7 | 20 | 5 | 7 | 24 | 29 | 0 | 0 | 0 | 1 | 0 |
| 8 | 16 | 4 | 21 | 23 | 29 | 0 | 0 | 0 | 1 | 0 |
| 9 | 16 | 24 | 25 | 28 | 30 | 0 | 0 | 0 | 0 | 0 |
| 10 | 16 | 3 | 4 | 8 | 25 | 0 | 1 | 1 | 1 | 0 |
| 11 | 16 | 3 | 9 | 30 | 15 | 1 | 0 | 1 | 0 | 1 |
| 12 | 17 | 1 | 19 | 20 | 5 | 0 | 0 | 1 | 1 | 0 |
| 13 | 16 | 17 | 23 | 8 | 15 | 0 | 1 | 0 | 1 | 0 |
| 14 | 18 | 3 | 10 | 11 | 13 | 0 | 0 | 0 | 0 | 0 |
| 15 | 2 | 3 | 9 | 25 | 11 | 0 | 0 | 0 | 0 | 1 |
| 16 | 18 | 21 | 6 | 7 | 9 | 1 | 1 | 0 | 0 | 0 |
| 17 | 17 | 22 | 7 | 8 | 30 | 0 | 0 | 0 | 1 | 0 |
| 18 | 22 | 8 | 26 | 12 | 30 | 0 | 1 | 0 | 1 | 1 |
| 19 | 21 | 6 | 26 | 11 | 13 | 0 | 0 | 0 | 1 | 1 |
| 20 | 3 | 10 | 27 | 28 | 30 | 0 | 0 | 0 | 0 | 0 |
| 21 | 1 | 9 | 26 | 27 | 13 | 0 | 1 | 0 | 0 | 0 |
| 22 | 4 | 20 | 6 | 27 | 28 | 0 | 0 | 0 | 1 | 0 |
| 23 | 17 | 20 | 10 | 26 | 27 | 0 | 0 | 1 | 0 | 0 |
| 24 | 16 | 21 | 24 | 25 | 28 | 0 | 0 | 0 | 0 | 1 |
| 25 | 16 | 17 | 20 | 21 | 15 | 0 | 0 | 0 | 0 | 0 |
| 26 | 21 | 7 | 27 | 12 | 30 | 0 | 0 | 1 | 0 | 0 |
| 27 | 21 | 22 | 8 | 29 | 13 | 1 | 1 | 1 | 1 | 0 |
| 28 | 18 | 3 | 21 | 27 | 29 | 1 | 0 | 0 | 0 | 1 |
| 29 | 20 | 7 | 10 | 13 | 15 | 0 | 1 | 1 | 1 | 0 |
| 30 | 2 | 19 | 26 | 30 | 15 | 0 | 0 | 0 | 0 | 0 |
| 31 | 17 | 4 | 22 | 26 | 12 | 0 | 0 | 0 | 0 | 1 |
| 32 | 16 | 1 | 2 | 8 | 15 | 0 | 1 | 0 | 1 | 0 |
| 33 | 19 | 3 | 23 | 12 | 13 | 0 | 0 | 1 | 0 | 0 |
| 34 | 2 | 3 | 23 | 29 | 13 | 1 | 0 | 0 | 1 | 0 |
| 35 | 16 | 19 | 3 | 23 | 14 | 0 | 0 | 1 | 1 | 0 |
| 36 | 17 | 12 | 14 | 30 | 15 | 0 | 0 | 1 | 0 | 0 |
| 37 | 16 | 17 | 2 | 12 | 28 | 0 | 0 | 0 | 0 | 0 |
| 38 | 19 | 22 | 11 | 13 | 14 | 0 | 0 | 1 | 1 | 1 |
| 39 | 25 | 26 | 27 | 12 | 15 | 0 | 0 | 0 | 0 | 1 |
| 40 | 2 | 19 | 20 | 23 | 9 | 0 | 0 | 0 | 0 | 1 |
| 41 | 20 | 25 | 11 | 28 | 30 | 0 | 0 | 0 | 0 | 0 |
| 42 | 4 | 21 | 14 | 30 | 15 | 0 | 1 | 1 | 0 | 0 |
| 43 | 4 | 7 | 8 | 13 | 14 | 0 | 1 | 1 | 0 | 1 |
| 44 | 2 | 4 | 13 | 14 | 30 | 0 | 0 | 0 | 0 | 0 |
| 45 | 19 | 4 | 26 | 27 | 13 | 0 | 1 | 0 | 1 | 0 |
| 46 | 20 | 5 | 24 | 8 | 14 | 0 | 1 | 1 | 0 | 1 |
| 47 | 16 | 2 | 4 | 5 | 9 | 0 | 0 | 0 | 0 | 0 |
| 48 | 16 | 18 | 24 | 25 | 26 | 0 | 0 | 0 | 0 | 0 |
| 49 | 17 | 19 | 4 | 28 | 13 | 0 | 0 | 0 | 0 | 0 |
| 50 | 1 | 3 | 7 | 8 | 29 | 0 | 0 | 1 | 0 | 1 |
| 51 | 3 | 5 | 9 | 10 | 15 | 0 | 0 | 0 | 0 | 1 |
| 52 | 16 | 5 | 8 | 26 | 28 | 0 | 0 | 0 | 0 | 0 |
| 53 | 17 | 19 | 21 | 28 | 15 | 0 | 0 | 0 | 0 | 0 |
| 54 | 3 | 26 | 11 | 28 | 15 | 0 | 0 | 0 | 0 | 0 |
| 55 | 19 | 3 | 9 | 12 | 15 | 0 | 0 | 0 | 0 | 0 |
| 56 | 18 | 25 | 11 | 29 | 30 | 0 | 0 | 0 | 0 | 0 |
| 57 | 19 | 23 | 24 | 29 | 13 | 0 | 0 | 0 | 1 | 0 |
| 58 | 16 | 1 | 2 | 22 | 15 | 0 | 0 | 0 | 0 | 0 |
| 59 | 16 | 17 | 23 | 24 | 13 | 0 | 1 | 0 | 0 | 0 |
| 60 | 6 | 22 | 25 | 28 | 30 | 0 | 1 | 0 | 0 | 0 |
| 61 | 16 | 21 | 6 | 8 | 25 | 0 | 0 | 0 | 0 | 0 |
| 62 | 6 | 25 | 26 | 28 | 13 | 0 | 0 | 0 | 0 | 0 |
| 63 | 18 | 7 | 10 | 26 | 15 | 0 | 0 | 1 | 0 | 0 |
| 64 | 1 | 21 | 5 | 26 | 27 | 0 | 0 | 0 | 0 | 0 |
| 65 | 17 | 3 | 25 | 9 | 26 | 0 | 1 | 0 | 0 | 0 |
| 66 | 7 | 25 | 10 | 27 | 28 | 0 | 0 | 0 | 0 | 0 |
| 67 | 3 | 7 | 23 | 25 | 15 | 0 | 0 | 0 | 0 | 0 |
| 68 | 4 | 22 | 9 | 10 | 12 | 0 | 0 | 0 | 1 | 0 |
| 69 | 17 | 7 | 10 | 27 | 14 | 0 | 0 | 1 | 0 | 0 |
| 70 | 19 | 21 | 22 | 6 | 7 | 0 | 0 | 0 | 0 | 1 |
| 71 | 18 | 20 | 21 | 6 | 15 | 0 | 0 | 0 | 1 | 0 |
| 72 | 3 | 20 | 21 | 6 | 8 | 0 | 0 | 0 | 0 | 0 |
| 73 | 4 | 25 | 26 | 12 | 13 | 0 | 0 | 0 | 0 | 0 |
| 74 | 18 | 9 | 10 | 29 | 15 | 0 | 0 | 1 | 0 | 0 |
| 75 | 2 | 20 | 5 | 9 | 15 | 0 | 0 | 0 | 0 | 0 |
| 76 | 17 | 8 | 24 | 30 | 15 | 0 | 0 | 0 | 0 | 0 |
| 77 | 17 | 6 | 8 | 26 | 28 | 0 | 0 | 0 | 0 | 0 |
| 78 | 17 | 4 | 6 | 24 | 25 | 0 | 1 | 0 | 0 | 0 |
| 79 | 3 | 19 | 6 | 27 | 13 | 0 | 0 | 0 | 1 | 0 |
| 80 | 1 | 17 | 5 | 9 | 12 | 0 | 0 | 1 | 0 | 0 |
| 81 | 19 | 22 | 26 | 10 | 11 | 0 | 0 | 0 | 0 | 0 |
| 82 | 16 | 21 | 5 | 6 | 12 | 0 | 0 | 0 | 0 | 0 |
| 83 | 22 | 10 | 27 | 29 | 15 | 0 | 0 | 1 | 0 | 0 |
| 84 | 17 | 18 | 5 | 21 | 15 | 0 | 0 | 0 | 0 | 0 |
| 85 | 17 | 8 | 10 | 27 | 30 | 0 | 0 | 0 | 0 | 0 |
| 86 | 19 | 6 | 8 | 27 | 12 | 0 | 0 | 0 | 0 | 0 |
| 87 | 23 | 7 | 30 | 14 | 15 | 0 | 0 | 0 | 0 | 0 |
| 88 | 16 | 20 | 11 | 13 | 15 | 0 | 0 | 1 | 0 | 0 |
| 89 | 17 | 19 | 4 | 12 | 13 | 0 | 0 | 0 | 0 | 0 |
| 90 | 17 | 19 | 21 | 8 | 25 | 0 | 0 | 0 | 0 | 0 |
| 91 | 17 | 19 | 20 | 5 | 24 | 0 | 0 | 0 | 0 | 0 |
| 92 | 1 | 20 | 4 | 9 | 28 | 0 | 0 | 0 | 0 | 0 |
| 93 | 17 | 21 | 23 | 12 | 30 | 0 | 0 | 0 | 0 | 0 |
| 94 | 18 | 3 | 12 | 14 | 15 | 0 | 0 | 0 | 1 | 0 |
| 95 | 3 | 7 | 24 | 26 | 11 | 0 | 1 | 0 | 0 | 1 |
| 96 | 1 | 5 | 6 | 9 | 30 | 0 | 1 | 1 | 0 | 0 |
| 97 | 16 | 6 | 25 | 26 | 10 | 0 | 0 | 0 | 0 | 0 |
| 98 | 5 | 22 | 9 | 11 | 30 | 0 | 0 | 0 | 0 | 0 |
| 99 | 5 | 22 | 7 | 24 | 28 | 0 | 0 | 1 | 0 | 0 |
+----+----+----+----+----+----+----------+----------+----------+----------+----------+
输出数据
- 导师和学生间的匹配信息(id为导师的id)
+----+------+------+------+------+------+------+------+------+
| id | stu1 | stu2 | stu3 | stu4 | stu5 | stu6 | stu7 | stu8 |
+----+------+------+------+------+------+------+------+------+
| 1 | 32 | 58 | 64 | 92 | NULL | NULL | NULL | NULL |
| 2 | 0 | 34 | NULL | NULL | NULL | NULL | NULL | NULL |
| 3 | 10 | 14 | 15 | 35 | 54 | 65 | 67 | NULL |
| 4 | 31 | 44 | 45 | 47 | 73 | 78 | 89 | NULL |
| 5 | 46 | 80 | 96 | NULL | NULL | NULL | NULL | NULL |
| 6 | 62 | 71 | 72 | 82 | 86 | 97 | NULL | NULL |
| 7 | 29 | 43 | 50 | 66 | 95 | 99 | NULL | NULL |
| 8 | 2 | 17 | 18 | 52 | 76 | 85 | NULL | NULL |
| 9 | 21 | 51 | 55 | NULL | NULL | NULL | NULL | NULL |
| 10 | 20 | 23 | 63 | 68 | 69 | 74 | NULL | NULL |
| 11 | 1 | 19 | 38 | 41 | 56 | 88 | NULL | NULL |
| 12 | 37 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 13 | 48 | 91 | NULL | NULL | NULL | NULL | NULL | NULL |
| 14 | 36 | 94 | NULL | NULL | NULL | NULL | NULL | NULL |
| 15 | 84 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 16 | 5 | 11 | NULL | NULL | NULL | NULL | NULL | NULL |
| 17 | 13 | 49 | 59 | 77 | 90 | 93 | NULL | NULL |
| 18 | 16 | 28 | NULL | NULL | NULL | NULL | NULL | NULL |
| 19 | 12 | 81 | NULL | NULL | NULL | NULL | NULL | NULL |
| 20 | 6 | 75 | NULL | NULL | NULL | NULL | NULL | NULL |
| 21 | 25 | 27 | 42 | 61 | NULL | NULL | NULL | NULL |
| 22 | 60 | 70 | 98 | NULL | NULL | NULL | NULL | NULL |
| 23 | 8 | 33 | 40 | 87 | NULL | NULL | NULL | NULL |
| 24 | 4 | 7 | 24 | NULL | NULL | NULL | NULL | NULL |
| 25 | 3 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 26 | 30 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 27 | 22 | 26 | 39 | 79 | 83 | NULL | NULL | NULL |
| 28 | 53 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 29 | 57 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
| 30 | 9 | NULL | NULL | NULL | NULL | NULL | NULL | NULL |
+----+------+------+------+------+------+------+------+------+
- 未被分配到学生的导师
所有导师均分配到学生
- 未分配到导师的学生
所有学生均分配到导师
感想及建议
以前的算法知识忘得差不多了，这次的编程也没用什么很好的算法，在结对编程过程中，队友发现我的代码不写注释，排版也有些混乱，帮我改了一下，我也觉得好多了，确实应该养成良好的代码习惯。在整个过程中，涉及到github，eclipse，mysql等软件的使用，多亏了队友的帮助，才能我的任务继续下去，队友真的帮了我很多，我要好好学习，争取下次做得更好。
代码
生成数据的程序
导师分配程序