题目内容
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淘汰赛问题 题目：Our school is planning to hold a new exciting computer programming cont
淘汰赛问题
题目：
Our school is planning to hold a new exciting computer programming contest. During each round of the contest, the competitors will be paired, and compete head-to-head. The loser will be eliminated, and the winner will advance to next round. It proceeds until there is only one competitor left, who is the champion. In a certain round, if the number of the remaining competitors is not even, one of them will be chosed randomly to advance to next round automatically, and then the others will be paired and fight as usual. The contest committee want to know how many rounds is needed to produce to champion, then they could prepare enough problems for the contest.
Input
The input consists of several test cases. Each case consists of a single line containing a integer N - the number of the competitors in total. 1 ＜= N ＜= 2,147,483,647. An input with 0(zero) signals the end of the input, which should not be processed.
Output
For each test case, output the number of rounds needed in the contest, on a single line.
Sample Input
8
16
15
0
Sample Output
3
4
4
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
①Competition Volunteers Needed ② Volunteer Teachers Wanted ③ Care for Animals 1. _______ Do you know there are many children in need of care and love？ Our school has a volunteer project during this summer vacation. You will work with children who are about six to ten years old and teach them something, such as English, music or maths. Above all, it’s an opportunity to show your love for the kids. Please contact us if you are interested. Student Union 20 June 2. _______ If you love animals, enjoy working with people and are happy to spend some of your spare time protecting and taking care of wildlife, you’re the person we are looking for! Your job is to take care of animals. Whenever you would like to join us, just come! Friends of the Community 5 May 3. _______ A competition is going to be held at our school from 15 to 19 October. We need volunteers to assist us. • Two volunteers are needed at the reception desk. Since some foreign teachers will take part in the competition, your oral English should be good. • Some volunteers are needed as guides for the contestants. If you are willing to help, please contact us as soon as possible! Student Union 20 September
