输入两个整数M和N，求M的N进制表示方式（M大于0且N大于等于2小于等于16）

#include <iostream>
#include <string>
using namespace std;
int main()
{
	string s = "", table = "0123456789ABCDEF";
	int M = 0, N = 0;
	cin >> M >> N;

	if (M == 0)
	{
		s = "0";
	}

	while (M)
	{
		if (M < 0)
		{
			M = -M;
			cout << "-";
		}
		s = table[M % N] + s;
		M /= N;
	}
	cout << s << endl;
	return 0;
}