用c语言编程，输入10个学生5门课的成绩，用函数计算每个学生的平均分，每门课的平均分，找出最高分对应的学生和课程，计算平均分方差

以下是用C语言编写的程序，实现输入10个学生5门课的成绩，用函数计算每个学生的平均分，每门课的平均分，找出最高分对应的学生和课程，计算平均分方差的功能：

#include <stdio.h>
#include <math.h>

#define STUDENTS 10
#define COURSES 5

void input_scores(float scores[][COURSES]);
void print_scores(float scores[][COURSES]);
void calculate_student_average(float scores[][COURSES], float student_average[]);
void calculate_course_average(float scores[][COURSES], float course_average[]);
void find_highest_score(float scores[][COURSES], int *max_student, int *max_course);
float calculate_average(float data[], int n);
float calculate_variance(float data[], int n, float average);

int main()
{
    float scores[STUDENTS][COURSES];
    float student_average[STUDENTS] = {0};
    float course_average[COURSES] = {0};
    int max_student, max_course;
    float average, variance;

    input_scores(scores);
    printf("\nInput scores:\n");
    print_scores(scores);

    calculate_student_average(scores, student_average);
    printf("\nStudent average scores:\n");
    for(int i = 0; i < STUDENTS; i++) {
        printf("Student %d: %.2f\n", i+1, student_average[i]);
    }

    calculate_course_average(scores, course_average);
    printf("\nCourse average scores:\n");
    for(int i = 0; i < COURSES; i++) {
        printf("Course %d: %.2f\n", i+1, course_average[i]);
    }

    find_highest_score(scores, &max_student, &max_course);
    printf("\nHighest score: %.2f, Student %d, Course %d\n", scores[max_student][max_course], max_student+1, max_course+1);

    average = calculate_average(student_average, STUDENTS);
    variance = calculate_variance(student_average, STUDENTS, average);
    printf("\nStudent average score variance: %.2f\n", variance);

    return 0;
}

void input_scores(float scores[][COURSES])
{
    printf("Please input scores of 10 students for 5 courses:\n");
    for(int i = 0; i < STUDENTS; i++) {
        printf("Student %d: ", i+1);
        for(int j = 0; j < COURSES; j++) {
            scanf("%f", &scores[i][j]);
        }
    }
}

void print_scores(float scores[][COURSES])
{
    for(int i = 0; i < STUDENTS; i++) {
        printf("Student %d: ", i+1);
        for(int j = 0; j < COURSES; j++) {
            printf("%.2f ", scores[i][j]);
        }
        printf("\n");
    }
}

void calculate_student_average(float scores[][COURSES], float student_average[])
{
    for(int i = 0; i < STUDENTS; i++) {
        for(int j = 0; j < COURSES; j++) {
            student_average[i] += scores[i][j];
        }
        student_average[i] /= COURSES;
    }
}

void calculate_course_average(float scores[][COURSES], float course_average[])
{
    for(int i = 0; i < COURSES; i++) {
        for(int j = 0; j < STUDENTS; j++) {
            course_average[i] += scores[j][i];
        }
        course_average[i] /= STUDENTS;
    }
}

void find_highest_score(float scores[][COURSES], int *max_student, int *max_course)
{
    float max_score = scores[0][0];
    for(int i = 0; i < STUDENTS; i++) {
        for(int j = 0; j < COURSES; j++) {
            if(scores[i][j] > max_score) {
                max_score = scores[i][j];
                *max_student = i;
                *max_course = j;
            }
        }
    }
}

float calculate_average(float data[], int n)
{
    float sum = 0;
    for(int i = 0; i < n; i++) {
        sum += data[i];
    }
    return sum / n;
}

float calculate_variance(float data[], int n, float average)
{
    float sum = 0;
    for(int i = 0; i < n; i++) {
        sum += pow(data[i] - average, 2);
    }
    return sum / n;
}

程序中定义了10个学生和5门课程，通过输入成绩、计算各种平均分、查找最高分以及计算平均分方差的函数实现不同的功能。