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Lowest Bit

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 12215    Accepted Submission(s): 8916

Problem Description

Given an positive integer A (1 <= A <= 100), output the lowest bit of A.

For example, given A = 26, we can write A in binary form as 11010, so the lowest bit of A is 10, so the output should be 2.

Another example goes like this: given A = 88, we can write A in binary form as 1011000, so the lowest bit of A is 1000, so the output should be 8.

Input

Each line of input contains only an integer A (1 <= A <= 100). A line containing "0" indicates the end of input, and this line is not a part of the input data.

Output

For each A in the input, output a line containing only its lowest bit.

Sample Input

26

88

0

Sample Output

2

8

#include<stdio.h> 
int main()  
    {  
        int num,sum,i,j,temp;  
        while(scanf("%d",&num)&&num!=0)  
        {  
           sum=1;temp=0;  
           for(i=1;temp==0;i++)  
           {  
               temp=num%2;  
               num=num/2;  
           }  
           for(j=1;j<i-1;j++)  
               sum=sum*2;  
          printf("%d\n",sum);
        }  
        return 0;  
    }  

Hdu 1196 Lowest Bit

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原文地址：http://www.cnblogs.com/zhangliu/p/7057917.html