Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#39**.
Example 1
Input: nums = [39,18,21,32,3,14,25,36,7,18,29,0,11,22,33,4,15,26,37,8,19,30,25], target = 43
Output: [0,15]
nums[0] + nums[15] = 43
Constraints
Acceptance: 53% · Topics: array, hash-table