2881. Two Sum Optimal Complement Lookup (Part 11)
ArraysHash Table
### Problem #2881: Two Sum Optimal Complement Lookup (Part 11)
Given an array of integers `nums` and an integer `target`, return indices of the two numbers such that they add up to `target`.
You may assume that each input would have exactly one solution, and you may not use the same element twice.
You can return the answer in any order.
Example 1:
Input: nums = [2, 7, 11, 15], target = 9
Output: [0, 1]
Explanation: Because nums[0] + nums[1] == 9, we return [0, 1].
Example 2:
Input: nums = [3, 2, 4], target = 6
Output: [1, 2]
Explanation: Because nums[1] + nums[2] == 6, we return [1, 2].
Constraints:
- 2 <= nums.length <= 10^4
- -10^9 <= nums[i] <= 10^9
- -10^9 <= target <= 10^9
- Only one valid answer exists.
Integrity: 100%
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Input Arguments:
nums = [2, 7, 11, 15], target = 9
Expected Output:
[0, 1]