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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.
An integer array nums and an integer target.
Return an integer array of size two representing the indices of the two numbers such that they add up to target.
2 <= nums.length <= 10^4 -10^9 <= nums[i] <= 10^9 -10^9 <= target <= 10^9 Exactly one valid answer exists.
Example 1
Input
nums = [2,7,11,15], target = 9
Output
[0,1]
Explanation
Because nums[0] + nums[1] == 9, we return [0, 1].