#include<iostream>
#include<cstring>
using namespace std;
int main()
{
void fun(int );
int num;
cout<<“Input num:”;
cin>>num;
fun(num);
return 0;
}
void fun(int num)
{
char ch[32];
int i=0;
while(num!=0)
{
ch[i]=num%2+’0′;
i++;
num=num/2;
if(num==1){ch[i]=’1′;ch[i+1]=’\0′;}
}
ch[i]=’\0′;
int m=strlen(ch);
char *p=&ch[m-1],*p1=ch;
while(p>=p1)
{
cout<<(*p);
p–;
}
cout<<endl;
}