qfedu-basic-level/day9/homework/h3.cpp

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2023-06-26 20:46:20 +08:00
// 编写一个函数,用于计算一个整数数组中所有元素的平均值,并返回结果。
#include <iostream>
using namespace std;
double average(int arr[], int size)
{
int sum = 0;
int size_copy = size;
while (--size >= 0)
{
sum += arr[size];
}
return sum / (double)size_copy;
}
int main()
{
int arr[] = {1, 2, 3, 4, 5, 6};
int size = sizeof(arr) / sizeof(arr[0]);
cout << "数组的平均值为:" << average(arr, size) << endl;
return 0;
}