Given `nums` and `target`, return indices of two distinct numbers that add up to `target`. Exactly one solution exists. Variant **#68**.
Example 1
Input: nums = [28,5,10,21,32,3,14,25,36,7,18,28], target = 33
Output: [0,1]
nums[0] + nums[1] = 33
Constraints
Acceptance: 62% · Topics: array, hash-table