c++迭代器输出水仙花数

#include <iostream>
#include <cmath>

using namespace std;

int main()
{
int start, end;
cout << "请输入起始数：";
cin >> start;
cout << "请输入结束数：";
cin >> end;

for(int i = start; i <= end; i++)
{
int num = i;
int sum = 0;
int count = 0;
while(num > 0)
{
count++;
num /= 10;
}
num = i;
while(num > 0)
{
sum += pow(num % 10, count);
num /= 10;
}
if(sum == i)
cout << i << "是水仙花数" << endl;
}

return 0;
}