杭电1196 Lowest Bit

简单题,中间只是用到了进制转换,然后中间加一个条件就搞定啦!

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
 

 

View Code
 1 #include<stdio.h>
 2 
 3 int fun( int n )
 4 {
 5     int bit = 1;
 6     while( n )
 7     {
 8         if( n % 2 == 0 )
 9             bit *= 2;
10         else
11             break;
12         n = n / 2;
13     }
14     return bit;
15 }
16 int main()
17 {
18     int n;
19     while( (scanf( "%d",&n )==1)&&( n != 0 ) )
20         printf( "%d\n", fun(n) );
21     return 0;
22 }

 

posted @ 2013-04-13 08:51  翼展zjz  阅读(141)  评论(0编辑  收藏  举报