167. Two Sum II - Input array is sorted.md

167. Two Sum II - Input array is sorted

https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/

solution

• 注意两个index不一定连续

class Solution:
    def twoSum(self, numbers: List[int], target: int) -> List[int]:
        l = 0
        r = len(numbers) - 1
        while l < r:
            s = numbers[l] + numbers[r]
            if s == target:
                return [l+1, r+1]
            elif s < target:
                l += 1
            else:
                r -= 1

时间复杂度：O()
空间复杂度：O()