drliyahua/step6.cpp

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

int studentMember = 0;

typedef struct storeInformation
{
    char stus[10];
    int classes;
    char names[10];
    double mathGrade;
    double physicsGrade;
    double englishGrade;
    int boolNew;
} stu;

stu studentInformation[10];

void input(int i) {
    scanf("%s", studentInformation[i].stus);
    scanf("%d", &studentInformation[i].classes);
    scanf("%s", studentInformation[i].names);
    scanf("%lf", &studentInformation[i].mathGrade);
    scanf("%lf", &studentInformation[i].physicsGrade);
    scanf("%lf", &studentInformation[i].englishGrade);
}

void inputStudentInformation(int n) {
    for (int i = 0; i < n; i++) {
        input(i);
        studentMember++;
        studentInformation[i].boolNew = 0;
        printf("One student has been input!\n");
    }
}

void insertedNew() {
    int i = studentMember;
    input(i);
    studentMember++;
    studentInformation[i].boolNew = 1;
    printf("One student has been input!\n");
}

void informationClear(char a[100]) {
    int i = 0;
    for (i = 0; i < studentMember; i++) {
        if (strcmp(a, studentInformation[i].stus) == 0 || strcmp(a, studentInformation[i].names) == 0) {
            memset(&studentInformation[i], 0, sizeof(studentInformation[i]));
        }
    }
}

void sortStudents() {
    for (int i = 0; i < studentMember - 1; i++) {
        for (int j = 0; j < studentMember - i - 1; j++) {
            double totalScoreJ = studentInformation[j].mathGrade + studentInformation[j].physicsGrade + studentInformation[j].englishGrade;
            double totalScoreJ1 = studentInformation[j + 1].mathGrade + studentInformation[j + 1].physicsGrade + studentInformation[j + 1].englishGrade;

            if (studentInformation[j].classes > studentInformation[j + 1].classes ||
                (studentInformation[j].classes == studentInformation[j + 1].classes && totalScoreJ < totalScoreJ1)) {
                stu temp = studentInformation[j];
                studentInformation[j] = studentInformation[j + 1];
                studentInformation[j + 1] = temp;
            }
        }
    }
    printf("Students have been sorted!\n");
}

void printStudentOriginalScore() {
    sortStudents();
    int classs = 0;
    for (int i = 0; i < studentMember; i++) {
        if (studentInformation[i].classes != 0) {
            if (studentInformation[i].classes == classs) {
                printf("%d  %s  %s  %.1f  %.1f  %.1f  %s\n",
                    studentInformation[i].classes,
                    studentInformation[i].stus,
                    studentInformation[i].names,
                    studentInformation[i].mathGrade,
                    studentInformation[i].physicsGrade,
                    studentInformation[i].englishGrade,
                    studentInformation[i].boolNew == 0 ? "" : studentInformation[i].boolNew == 1 ? "inserted" : "modified");
            }
            else {
                printf("   %s  %s  %.1f  %.1f  %.1f  %s\n",
                    studentInformation[i].stus,
                    studentInformation[i].names,
                    studentInformation[i].mathGrade,
                    studentInformation[i].physicsGrade,
                    studentInformation[i].englishGrade,
                    studentInformation[i].boolNew == 0 ? "" : studentInformation[i].boolNew == 1 ? "inserted" : "modified");
            }
            classs = studentInformation[i].classes;
            studentInformation[i].boolNew = 0;
        }
    }

}

void modifyStudent() {
    char a[10];
    printf("Are you sure(yes/no)");
    scanf("%s", &a);
    if ((strcmp(a, "yes")) == 0) {
        char stusToModify[10];
        printf("Enter the student number to modify, followed by new data ( 10001 2 Kobe 59 59 59):\n");
        scanf("%s", stusToModify);

        int found = 0;
        for (int i = 0; i < studentMember; i++) {
            if (strcmp(studentInformation[i].stus, stusToModify) == 0) {
                found = 1;
                scanf("%d %s %lf %lf %lf",
                    &studentInformation[i].classes,
                    studentInformation[i].names,
                    &studentInformation[i].mathGrade,
                    &studentInformation[i].physicsGrade,
                    &studentInformation[i].englishGrade);
                studentInformation[i].boolNew = 2;
                printf("Student data modified successfully!\n");
                break;
            }
        }
        if (!found) {
            printf("Student with number %s not found.\n", stusToModify);
        }
    }
}

void manage() {
    printf("                              1.Input\n");
    printf("                              2.Output\n");
    printf("                              3.Order\n");
    printf("                              4.Quit\n");
    char keywords;
    keywords = getchar();
    switch (keywords) {
    case 'i':
        printf("Please input info of the three students\n");
        inputStudentInformation(3);
        break;
    case 'o':
        printf("You are trying to Output info\n");
        break;
    case 'm':
        printf("You are trying to Make things ordered\n");
        break;
    case 'q':
        printf("You are about to Quit\n");
        break;
    default:
        printf("Wrong input\n");
        break;
    }
}

int main() {
    char a[100];
    manage();
    modifyStudent();
    printStudentOriginalScore();
    return 0;
}