Code RoomBinary search misses target
MediumPrep Room Coding #1583

Binary search misses target

CodingAlgorithms & data structuresMid–Senior~25 min

This binary search should return the index of target in a sorted array, or -1, but it misses the target in some cases. Find and fix the bug.

Implement
binary_search(nums: list[int], target: int) → int
Examples
in[[-1,0,3,5,9,12],9]out4
What a strong answer looks like

State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.

0:00 of about 25 min
InputExpectedGot
[[-1,0,3,5,9,12],9]4not run yetsample