167 Two Sum II - Input array is sorted

Python

class Solution(object):
    def twoSum(self, numbers, target):
        """
        :type numbers: List[int]
        :type target: int
        :rtype: List[int]
        """
        left,right = 0,len(numbers)-1
        while left <= right:
            if numbers[left] + numbers[right] == target:
                return [left+1,right+1]
            elif numbers[left] + numbers[right] < target:
                left += 1
            elif numbers[left] + numbers[right] > target:
                right -= 1
        if numbers[left] + numbers[right] == target:
            return [left+1,right+1]