Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#12**.
Example 1
Input: nums = [12,37,34,5,16,27,38,9,20,31,2,13,24,35,6,36], target = 73
Output: [1,15]
nums[1] + nums[15] = 73
Constraints
Acceptance: 60% · Topics: array, hash-table