How should I practice Last Position of a Target in a Sorted Array?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Bloomberg LP phone screen problems in FastPrep.

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Last Position of a Target in a Sorted Array

Bloomberg LP● EasyNEW GRADPHONE SCREEN

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Problem statement

nums is sorted in nondecreasing order. Return the zero-based index of the final occurrence of target, or -1 if target is absent.

Function

lastPosition(nums: int[], target: int) → int

Examples

Example 1

nums = [1,2,2,2,3]target = 2return = 3

The final 2 occurs at index 3.

Constraints

0 <= nums.length <= 10^5.