Search `target` in sorted ascending `nums`. Return index or `-1`. Variant **#43**.
Example 1
Input: nums = [43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83], target = 49
Output: 3
Constraints
Acceptance: 71% · Topics: binary-search, array