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33. Search in Rotated Sorted Array 본문

Computer Science/Coding Test

33. Search in Rotated Sorted Array

focalpoint 2021. 9. 11. 22:09
class Solution:
    def search(self, nums: List[int], target: int) -> int:
        left, right = 0, len(nums) - 1
        while left <= right:
            mid = (left + right) // 2
            mid_val = nums[mid]
            if mid_val == target:
                return mid
            if nums[mid] >= nums[left]:
                if nums[left] <= target < nums[mid]:
                    right = mid - 1
                else:
                    left = mid + 1
            else:
                if nums[mid] < target <= nums[right]:
                    left = mid + 1
                else:
                    right = mid - 1
        return -1