作业5

#include <iostream>
#include <vector>
#include <string>
#include <iomanip> 

using namespace std;


struct Student {
    string id;
    string name;
    int mathScore;
    int englishScore;
    int programmingScore;
    double averageScore; 
};


void InputStudent(vector<Student>& students, int count) {
    for (int i = 0; i < count; ++i) {
        Student student;
        cin >> student.id >> student.name >> student.mathScore >> student.englishScore >> student.programmingScore;
        students.push_back(student);
    }
}


void outputStudent(const vector<Student>& students) {
    cout << left << setw(12) << "学号"
         << left << setw(12) << "姓名"
         << left << setw(10) << "数学成绩"
         << left << setw(10) << "英语成绩"
         << left << setw(14) << "程序设计成绩"
         << left << setw(10) << "平均分" << endl;


    for (const auto& student : students) {
        double average = (student.mathScore + student.englishScore + student.programmingScore) / 3.0;
        cout << left << setw(12) << student.id
             << left << setw(12) << student.name
             << left << setw(10) << student.mathScore
             << left << setw(10) << student.englishScore
             << left << setw(14) << student.programmingScore
             << left << setw(10) << fixed << setprecision(2) << average << endl;
    }
}

int main() {
    int N;
    cin >> N; 

    vector<Student> students;
    InputStudent(students, N); 

    outputStudent(students); 
    return 0;
}

#include <stdio.h>
#include <string.h>

typedef struct {
    char id?:ml-citation{ref="1" data="citationList"};
    char name?:ml-citation{ref="2" data="citationList"};
    int mathScore;
    int englishScore;
    int programmingScore;
} Student;

void FindStudentByName(Student students[], int count, const char *name) {
    for (int i = 0; i < count; i++) {
        if (strcmp(students[i].name, name) == 0) {
            printf("%s%s%d%d%d\n", students[i].id, students[i].name, students[i].mathScore, students[i].englishScore, students[i].programmingScore);
            return;
        }
    }
    printf("Not Found!\n");
}

int main() {

    Student students[] = {
        {"20241002121", "WangFang", 78, 78, 82},

    };
    int count = sizeof(students) / sizeof(students);

    char inputName1[] = "WangFang";
    FindStudentByName(students, count, inputName1);

    char inputName2[] = "Zhangsan";
    FindStudentByName(students, count, inputName2);

    return 0;
}

3.

#include <stdio.h>

typedef struct {
    char id?:ml-citation{ref="1" data="citationList"};
    float mathScore;
    float englishScore;
    float programmingScore;
} Student;


typedef struct {
    float totalAverage; 
    float mathAverage;  
    float englishAverage; 
    float programmingAverage; 
} Averages;


Averages computeAverage(Student students[], int count) {
    Averages averages;
    float totalMath = 0, totalEnglish = 0, totalProgramming = 0;
    
 
    for (int i = 0; i < count; i++) {
        totalMath += students[i].mathScore;
        totalEnglish += students[i].englishScore;
        totalProgramming += students[i].programmingScore;
    }
    

    averages.mathAverage = totalMath / count;
    averages.englishAverage = totalEnglish / count;
    averages.programmingAverage = totalProgramming / count;
    
    averages.totalAverage = (totalMath + totalEnglish + totalProgramming) / (3 * count);
    
    return averages;
}

int main() {

    Student students[] = {
        {"20241003012", 78.6667, 90.0000, 85.0000},
        {"20241003013", 86.3333, 88.0000, 75.0000},
        {"20241002121", 79.6667, 85.0000, 85.0000}
    };
    int count = sizeof(students) / sizeof(students);
    
    Averages averages = computeAverage(students, count);
    
    printf("学生成绩的总平均分（注意保留4位小数）：%.4f\n", averages.totalAverage);

    printf("Math: %.4f\n", averages.mathAverage);
    printf("English: %.4f\n", averages.englishAverage);
    printf("CProgram: %.4f\n", averages.programmingAverage);
    
    return 0;
}

#include <stdio.h>

typedef struct {
    char id?:ml-citation{ref="1" data="citationList"};
    float mathScore;
    float englishScore;
    float programmingScore;
    float averageScore; 
} Student;

void calculateAverage(Student *students, int count) {
    for (int i = 0; i < count; i++) {
        students[i].averageScore = (students[i].mathScore + students[i].englishScore + students[i].programmingScore) / 3.0;
    }
}

void Descendingsortayawgscore(Student *students, int count) {
    for (int i = 0; i < count - 1; i++) {
        int maxIndex = i;
        for (int j = i + 1; j < count; j++) {
            if (students[j].averageScore > students[maxIndex].averageScore) {
                maxIndex = j;
            }
        }
     
        Student temp = students[i];
        students[i] = students[maxIndex];
        students[maxIndex] = temp;
    }
}

int main() {
  
    Student students[] = {
        {"20241003012", 78.6667, 90.0000, 85.0000, 0},
        {"20241003013", 86.3333, 88.0000, 75.0000, 0},
        {"20241002121", 79.6667, 85.0000, 85.0000, 0}
    };
    int count = sizeof(students) / sizeof(students);
    
 
    calculateAverage(students, count);
    

    Descendingsortayawgscore(students, count);
    

    printf("根据学生成绩的平均分排序结果（注意保留4位小数）：\n");
    for (int i = 0; i < count; i++) {
        printf("%s %.4f\n", students[i].id, students[i].averageScore);
    }
    
    return 0;
}

#include <stdio.h>
#include <string.h>

typedef struct {
    char name?:ml-citation{ref="1" data="citationList"};
    char id?:ml-citation{ref="2" data="citationList"};
} Student;


void DescendingSortByName(Student *students, int count) {
    for (int i = 0; i < count - 1; i++) {
        int maxIndex = i;
        for (int j = i + 1; j < count; j++) {
            if (strcmp(students[j].name, students[maxIndex].name) > 0) {
                maxIndex = j;
            }
        }
  
        Student temp = students[i];
        students[i] = students[maxIndex];
        students[maxIndex] = temp;
    }
}

int main() {

    Student students[] = {
        {"LiWen", "20241003012"},
        {"HeHua", "20241003013"},
        {"Wangfang", "20241002121"}
    };
    int count = sizeof(students) / sizeof(students);
    

    DescendingSortByName(students, count);
    

    printf("根据学生姓名排序结果（注意对齐）：\n");
    for (int i = 0; i < count; i++) {
        printf("%-10s%-15s\n", students[i].name, students[i].id);
    }
    
    return 0;
}