輸出100~999中的所有水仙花數。若3位數ABC滿足ABC=A^3+B^3+C^3,則稱其為水仙花數。例如153=1^3+5^3+3^3,是以153是水仙花數。
#include <stdio.h>
//#include <stdlib.h>
//#include <stdbool.h>
int cube ( const int n )
{
return n * n * n;
}
bool isNarcissistic ( const int n )
{
int hundreds = n / 100;
int tens = (n / 10) % 10;//int tens = n / 10 - hundreds * 10;
int ones = n % 10;
return cube(hundreds) + cube(tens) + cube(ones) == n;
}
int main(void)
{
int i;
for ( i = 100; i < 1000; ++ i )
{
if ( isNarcissistic(i) )
printf("%d\n", i );
}
return 0;//return EXIT_SUCCESS;