p7.cpp

好东西,绝对是好东西,我向大家推荐

#include <iostream.h>
int main()
{
	int n,a[80],i,N;
	while(cin>>N)
	{
		i=0;
		n=N;
		while(n!=1&&n!=0)
		{
			a[i]=n%2;
			n=n/2;
			i++;
		}
		a[i]=1;
		if(N==1||N==0) {cout<<N<<endl;}
			else
			{
				for(;i>=0;i--)
				{
					cout<<a[i];
				}
				cout<<endl;
			}
	}
}