返回C语言中调和平均值和平均值的函数

#include <stdio.h>

double harmonicAndArithmeticMean(int arr[], int size, double* arithmeticMean) {
    double harmonicMean = 0.0;
    double sum = 0.0;

    for (int i = 0; i < size; i++) {
        sum += arr[i];
        harmonicMean += 1.0 / arr[i];
    }

    *arithmeticMean = sum / size;
    harmonicMean = size / harmonicMean;

    return harmonicMean;
}

int main() {
    int arr[] = { 1, 2, 3, 4, 5 };
    int size = sizeof(arr) / sizeof(arr[0]);
    double arithmeticMean = 0.0;

    double result = harmonicAndArithmeticMean(arr, size, &arithmeticMean);

    printf("Harmonic Mean: %lf\n", result);
    printf("Arithmetic Mean: %lf\n", arithmeticMean);

    return 0;
}