//特殊的四位数
//输出所有四位数(十进制)中具有如下属性的数://四位数字之和等于其十六进制形式各位数字之和,也等于七十二进制形式的各位数字之和
#include <stdio.h>
int main()
{
int num, tmp;
for (num = 1000; num <= 9999; num++)
{
int s16 = 0, s12 = 0, s10 = 0;//num的各种进制之和
tmp =num;
while (tmp)//等效于while(tmp != 0)
{
s16 += tmp %16;
tmp /= 16;
}
tmp = num;
while (tmp)
{
s12 += tmp % 12;
tmp /= 12;
}
if (s16 != s12)
{
continue;
}
tmp = num;
while (tmp)
{
s10 += tmp % 10;
tmp /= 10;
}
if (s16 == s10)
{
printf("%d\n", num);
}
}
return 0;
}