获取一个数二进制序列中所有的偶数位和奇数位，分别输出二进制序列

#include<stdio.h>
int main()
{
int a[32]={0};
int i=0,num=0,data;
printf("please enter the number>");
scanf("%d",&num);
for(i=0;i<32;i++)
{
a[i]=num%2;
num/=2;
}
printf("Even sequence>\n");
for(i=31;i>=0;i-=2)
{
printf("%d ",a[i]);
}
printf("\n");
printf("Odd sequence>\n");
for(i=30;i>=0;i-=2)
{
printf("%d ",a[i]);
}
printf("\n");
return 0;
}