Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#18**.
Example 1
Input: nums = [18,5,0,11,22,33,4,15,26,37,8,19,30,1,12,23,34,5,16,27,38,28], target = 33
Output: [0,7]
nums[0] + nums[7] = 33
Constraints
Acceptance: 49% · Topics: array, hash-table