Armstrong 数，就是n位数的各位数的n次方之和等于该数，如：

153=1^3+5^3+3^3
1634=1^4+6^4+3^4+4^4
实例

include

int main()
{
int number, originalNumber, remainder, result = 0;

printf("输入三位数: ");
scanf("%d", &number);

originalNumber = number;

while (originalNumber != 0)
{
    remainder = originalNumber%10;
    result += remainder*remainder*remainder;
    originalNumber /= 10;
}

if(result == number)
    printf("%d 是 Armstrong 数",number);
else
    printf("%d 不是 Armstrong 数",number);

return 0;

}

运行结果：

输入三位数: 371
371 是 Armstrong