*寒假水13——Bitset

 

Give you a number on base ten,you should output it on base two.(0 < n < 1000)

InputFor each case there is a postive number n on base ten, end of file.OutputFor each case output a number on base two.Sample Input

1
2
3

Sample Output

1
10
11

 

 

 

#include<stdio.h>
int main()
{
	int n,k,t;
	while(scanf("%d",&n)!=EOF)
	{
		k=0;
		t=1;
		while(n!=0)
		{
			k+=(n%2)*t;
			n=n/2;
			t*=10;
		}
		printf("%d\n",k);
	}
	return 0;
}

 

题解：循环就好。

 

 

未知多少组测试数据，用while(scanf("%d",&n)!=EOF)。