qfedu-basic-level/day8/homework/h19.cpp

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// 输入一个整数 n然后输入 n 个整数,输出其中所有能被 3 或 5 整除的数的平均值。
#include <iostream>
using namespace std;
int main()
{
int n;
int *nums = new int[n];
int i = 0;
int sum = 0; // 和
int cnt = 0; // 计数器
cout << "请输入整数 n: ";
cin >> n;
cout << "请输入" << n << "个整数: ";
while (i < n)
{
cin >> nums[i];
i++;
}
while (--n >= 0)
{
if (nums[n] % 3 == 0 || nums[n] % 5 == 0)
{
cnt++;
sum += nums[n];
}
else
continue;
}
cout << "输入的整数中所有能被 3 或 5 整除的数的平均值: " << sum / (double)cnt << endl;
return 0;
}