HDU_2051——十进制到二进制转换

Problem Description

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

 

Input

For each case there is a postive number n on base ten, end of file.

 

Output

For each case output a number on base two.

 

Sample Input

1 2 3

 

Sample Output

1 10 11

#include <cstdio>
int main()
{
    int n, i, ans[11];
    while(~scanf("%d",&n))
        {
            if(n==0)
                {
                    printf("0
");    
                }
            for(i=0;n;i++)
                {
                    ans[i]=n%2;
                    n=n/2;
                }
            for(i--;i>=0;i--)
                {
                    printf("%d",ans[i]);    
                }
            printf("
");
        }
    return 0;    
}