{ "data": { "question": { "questionId": "167", "questionFrontendId": "167", "boundTopicId": null, "title": "Two Sum II - Input Array Is Sorted", "titleSlug": "two-sum-ii-input-array-is-sorted", "content": "

Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. Let these two numbers be numbers[index1] and numbers[index2] where 1 <= index1 < index2 <= numbers.length.

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Return the indices of the two numbers, index1 and index2, added by one as an integer array [index1, index2] of length 2.

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The tests are generated such that there is exactly one solution. You may not use the same element twice.

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Your solution must use only constant extra space.

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Example 1:

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\nInput: numbers = [2,7,11,15], target = 9\nOutput: [1,2]\nExplanation: The sum of 2 and 7 is 9. Therefore, index1 = 1, index2 = 2. We return [1, 2].\n
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Example 2:

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\nInput: numbers = [2,3,4], target = 6\nOutput: [1,3]\nExplanation: The sum of 2 and 4 is 6. Therefore index1 = 1, index2 = 3. We return [1, 3].\n
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Example 3:

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\nInput: numbers = [-1,0], target = -1\nOutput: [1,2]\nExplanation: The sum of -1 and 0 is -1. Therefore index1 = 1, index2 = 2. We return [1, 2].\n
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Constraints:

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