Can you explain how binary search works?
Sure! Binary search is an efficient algorithm for finding an item from a sorted list of items. It works by repeatedly dividing the search interval in half.
How does it decide which half to search next?
It compares the target value to the middle element of the array. If the target is less than the middle element, it continues the search in the left half; if greater, in the right half.
What is the time complexity of binary search?
The time complexity of binary search is O(log n), which makes it much faster than linear search for large datasets.
Can binary search be used on unsorted arrays?
No, binary search requires the array to be sorted. If the array is unsorted, you would need to sort it first.
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