找出水仙花数

#include <iostream>

#include <cmath>

using namespace std;

int main()

{
int g_iMax =0;
cout << "pls put the max number: ";
cin>> g_iMax;
try 
{
if (g_iMax < 0)
throw  g_iMax;
}
//依次检查从0到输入的数据
for (int l_iLoop=0; l_iLoop <= g_iMax; l_iLoop++)
{
int l_iTmp1 =l_iLoop;
int l_iTmp2 =l_iLoop;
int l_iTt1 =0;
int l_iDgt =0;
//计算当前数据的位数
do 
{
++l_iDgt;
l_iTmp1 = l_iTmp1/10;

}while(l_iTmp1);
//计算每个数据的对应的位数次幂的和
for (int i=0; i != l_iDgt; ++i)
{
l_iTmp1+= int (pow(double(l_iTmp2%10),double(l_iDgt)));
l_iTmp2 = l_iTmp2/10;
}
//检查位数次幂的和是否和当前位数相等
if (l_iLoop==l_iTt1)
{
cout << l_iTt1<< endl;
}

catch (int n)
{
cerr << "error,input number " << n <<"less than zero !" <<endl;
}

return 0;

}

}