COMPUTER SCIENCE AND ENGINEERING
ALGORITHMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
key is the last element in the array
|
|
|
key is in the middle of the array
|
|
|
n is very large
|
|
|
key is the first element in the array
|
|
|
key does not exist in the array
|
Detailed explanation-1: -Linear or Sequential Search This algorithm works by sequentially iterating through the whole array or list from one end until the target element is found. If the element is found, it returns its index, else-1.
Detailed explanation-2: -Binary search is a very fast and efficient searching technique. It requires the list to be in sorted order. In this method, to search an element you can compare it with the present element at the center of the list.
Detailed explanation-3: -The time complexity of the binary search algorithm is O(log n).
Detailed explanation-4: -(1). The worst case scenario for seeking an element in a linear search is N number of queries. For binary search, on the other hand, the number of comparisons is 2N.