标签：whether 比较 ssg logs div ret efi oss else
We are playing the Guess Game. The game is as follows:
I pick a number from 1 to n. You have to guess which number I picked.
Every time you guess wrong, I‘ll tell you whether the number is higher or lower.
You call a pre-defined API guess(int num) which returns 3 possible results (-1, 1, or 0):
-1 : My number is lower 1 : My number is higher 0 : Congrats! You got it!
Example:
n = 10, I pick 6. Return 6.
本题相对来说比较简单，代码如下：
1 /* The guess API is defined in the parent class GuessGame. 2 @param num, your guess 3 @return -1 if my number is lower, 1 if my number is higher, otherwise return 0 4 int guess(int num); */ 5 6 public class Solution extends GuessGame { 7 public int guessNumber(int n) { 8 int left = 1; 9 int right = n; 10 while(left<right){ 11 int mid = left+(right-left)/2; 12 if(guess(mid)==0) return mid; 13 else if(guess(mid)==1) left = mid+1; 14 else right = mid-1; 15 } 16 return left; 17 } 18 }
374. Guess Number Higher or Lower
标签：whether 比较 ssg logs div ret efi oss else
原文地址：http://www.cnblogs.com/codeskiller/p/6478302.html
