"""
搜索插入位置
"""
from typing import List


class Solution:
    def searchInsert(self, nums: List[int], target: int) -> int:
        """
        双指针
        :param nums:
        :param target:
        :return:
        """
        left, right = 0, len(nums) - 1
        while left <= right:
            mid = (left + right) // 2
            if nums[mid] == target:
                return mid
            elif nums[mid] < target:
                left += 1
            else:
                right -= 1
        return left

    def searchInsert2(self, nums: List[int], target: int) -> int:
        """
        双指针
        :param nums:
        :param target:
        :return:
        """
        left, right = 0, len(nums) - 1
        while left <= right:
            mid = (left + right) // 2
            if nums[mid] == target:
                return mid
            elif nums[mid] < target:
                left = mid + 1
            else:
                right = mid - 1
        return left


if __name__ == '__main__':
    result = Solution().searchInsert([1, 3, 5, 6], 4)
    print(result)