编程实现 无符号乘法溢出判断

//无符号乘法溢出判断 
#include<iostream>
using namespace std;
int main()
{
	unsigned int x,y,pro;
	cin>>x>>y;
	pro=x*y;
	if (pro/y != x)
		cout<<"溢出";
	else 
		cout<<"不溢出";
	return 0; 
 }