Leetcode - Search in Rotated Sorted Array II
https://leetcode.com/problems/search-in-rotated-sorted-array-ii/
Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand.
(i.e., [0,0,1,2,2,5,6]
might become [2,5,6,0,0,1,2]
).
You are given a target value to search. If found in the array return true
, otherwise return false
.
Example 1:
Input: nums = [2,5,6,0,0,1,2]
, target = 0
Output: true
func search(nums []int, target int) bool { left := 0 right := len(nums) - 1 var mid int for left <= right { mid = (left+right)/2 if target == nums[mid] { return true } if left < len(nums) && right >= 0 && nums[left] == nums[mid] && nums[mid] == nums[right] { left++ right-- continue } if nums[mid] <= nums[right] {//pivot is on the left side if target > nums[mid] && target <= nums[right] { left = mid + 1 } else { right = mid - 1 } } else { // pivot is on the right side if target >= nums[left] && target < nums[mid] { right = mid - 1 } else { left = mid + 1 } } } return false }