写函数求x的n次方

#include<iostream>
using namespace std;
//编写x的n次方的函数:

long power(int x, int n)
{
	int j = x;
	for (int i = 1; i < n; i++)
	{

		x *= j;
	}
	return x;
}

int main()
{
	int x = 4;
	int n = 3;
	long result = power(x, n);
	cout << x << "的" << n << "次方为:" << result << endl;
	return 0;
}