壹個6位數如果將他的前三位和後三位整體交換位置則所得的新六位數是原數的六倍，這個六位數是多少？

void main()

{

int iNumber;

int a,b,c,d,e,f;

for(iNumber = 100000 ; iNumber <= 999999 ; iNumber ++ )

{

a = iNumber / 100000;

b = (iNumber / 10000) % 10;

c = (iNumber / 1000) % 10;

d = (iNumber / 100) % 10;

e = (iNumber / 10) % 10;

f = iNumber % 10;

//cout << a <<" " << b << " " << c << " " << d << " " << e << " " << f << endl;

if((d * 100000 + e * 10000 + f * 1000 + a * 100 + b * 10 + c) == 6 * iNumber)

{

cout << "結果為:" << iNumber <<endl;

}

}

}

結果為:142857