xueji/4.c

#include <stdio.h>

// ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD>Ľṹ<C4BD><E1B9B9>
struct Student {
    int id;
    int class;
    float score1;
    float score2;
    float score3;
};

// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĺ<EFBFBD><C4BA><EFBFBD>
void insertStudent(struct Student students[], int* numStudents, struct Student newStudent) {
    int i, j;

    // <20><><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD>Ƿ<EFBFBD><C7B7>Ѵ<EFBFBD><D1B4><EFBFBD>
    for (i = 0; i < *numStudents; i++) {
        if (students[i].id == newStudent.id) {
            printf("<EFBFBD>Ѵ<EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD>ŵ<EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>\n");
            return;
        }
    }

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    students[*numStudents] = newStudent;
    (*numStudents)++;
    for (i = 0; i < *numStudents - 1; i++) {
        for (j = 0; j < *numStudents - i - 1; j++) {
            if (students[j].class > students[j + 1].class ||
                (students[j].class == students[j + 1].class && students[j].score1 < students[j + 1].score1)) {
                struct Student temp = students[j];
                students[j] = students[j + 1];
                students[j + 1] = temp;
            }
        }
    }

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>־
    for (i = 0; i < *numStudents; i++) {
        printf("%d %d %.1f %.1f %.1f", students[i].id, students[i].class, students[i].score1, students[i].score2, students[i].score3);
        if (i == *numStudents - 2) {
            printf(" inserted");
        }
        printf("\n");
    }
}

int main() {
    // <20><><EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ
    struct Student students[3] = {
        {10001, 11, 99.5, 88.5, 89.5},
        {10002, 12, 77.9, 56.5, 87.5},
        {10003, 11, 92.5, 99.0, 60.5}
    };
    int numStudents = 3;

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ
    struct Student newStudent;
    scanf("%d %d %f %f %f", &newStudent.id, &newStudent.class, &newStudent.score1, &newStudent.score2, &newStudent.score3);

    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    insertStudent(students, &numStudents, newStudent);

    return 0;
}