Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#29**.
Example 1
Input: nums = [29,38,11,22,33,4,15,26,37,8,19,30,5], target = 43
Output: [1,12]
nums[1] + nums[12] = 43
Constraints
Acceptance: 74% · Topics: array, hash-table