#include<stdio.h>
int main(void)
{
int i,n
void dectobin(int n)
scanf("%d",&n)
dectobin(n)/*定义函数,将n转换为二进制之后的数值*/ printf("\n")}
void dectobin(int n) {
if(n>1) dectobin(n/2)
printf("%d",n%2)/*输出二进制数值*/
}
//---------------------------------------------------------------------------#include <stdio.h>
#include <limits.h>
int main(void)
{
int a,i=0
unsigned int mark=1<<CHAR_BIT*sizeof(int)-1
scanf("%d",&a)/*输入要查看二进制形式的整数*/
while (mark)
{
putchar(a&mark?'1':'0')
if (++i%4==0) putchar(' ')
mark>>=1
}
putchar('\n')
return 0
}
//---------------------------------------------------------------------------