COMPUTER SCIENCE AND ENGINEERING
ALGORITHMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Put the elements in order, check each item in turn.
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Put the elements in order, compare with the middle value, split the list in order and repeat
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Elements do not need to be in order, check each item in turn.
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Elements do not need to be in order, compare to the middle value, split the list in order and repeat.
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Detailed explanation-1: -Binary search is an efficient algorithm for finding an item from a sorted list of items. It works by repeatedly dividing in half the portion of the list that could contain the item, until you’ve narrowed down the possible locations to just one.
Detailed explanation-2: -Binary search works on sorted arrays. Binary search begins by comparing an element in the middle of the array with the target value. If the target value matches the element, its position in the array is returned. If the target value is less than the element, the search continues in the lower half of the array.
Detailed explanation-3: -A binary search algorithm is an alternative to linear/sequential search algorithm. It is much faster that linear search. The time complexity of binary search is O(log n) in worst case. It is O(1)) is the best case.
Detailed explanation-4: –The right subtree of a node contains only nodes with keys greater than the node’s key. Binary search tree is a binary tree which has special property called BST, where each node contains only smaller values in its left subtree and only larger values in its right subtree.