vllbc02搜索旋转排序数组
搜索旋转排序数组
题目：
https://leetcode-cn.com/problems/search-in-rotated-sorted-array/
思路：
明显的二分查找，不过不是有序数组了，而是部分有序，所以需要有判断
代码：
class Solution(object):
def search(self, nums, target):
left, right = 0, len(nums) - 1
while left <= right:
mid = left + (right - left) // 2
if nums[mid] == target:
return mid
if nums[mid] < nums[right]:#右边为升序
if nums[mid] < target <= nums[right]:
left = mid + 1
else:
right = mid
if nums[left] <= nums[mid]:#左边为升序
if nums[left] <= target < nums[mid]:
right = mid
else:
left = mid + 1
return -1