Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#56**.
Example 1
Input: nums = [16,19,38,9,20,31,2,13,24,35,6,17,28,39,10,21,32,3,14,44], target = 63
Output: [1,19]
nums[1] + nums[19] = 63
Constraints
Acceptance: 67% · Topics: array, hash-table