c语言 数组求平均数

以下是两种C语言数组求平均数的例子：

1.数组求均值并输出大于均值的数

#include <stdio.h>

int main() {
    int x;
    double sum = 0;
    int cnt = 0;
    int number[100]; // 定义一个100个元素的数组

    scanf("%d", &x);
    while (x != -1) {
        number[cnt] = x;
        sum += x;
        cnt++;
        scanf("%d", &x);
    }

    if (cnt > 0) {
        double average = sum / cnt;
        printf("%f\n", average);

        int i;
        for (i = 0; i < cnt; i++) {
            if (number[i] > average) {
                printf("%d\n", number[i]);
            }
        }
    }

    return 0;
}

2.平均值比较容易得到

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

#define NUM 10

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

int main() {
    int i;
    int feedback[NUM] = {0};
    for (i = 0; i < NUM; i++) {
        printf("请输入第%d个数：", i + 1);
        scanf("%d", &feedback[i]);
    }
    printf("Mean =%3f\n", Mean(feedback, (sizeof(feedback) / sizeof(feedback[0]))));
    return 0;
}