TCS Searching and Sorting Questions Quiz-1

If the element situated at the end of the array, so it takes maximum time to search for that of the element.

You can read more about Linear Search here

When the element situated at the middle of the array, so it takes average time so, it is neither best case or worst case.

You can read more about Linear Search here

You cannot use a binary search on an unsorted list. Your best bet is to probably iterate over the list’s items until you find the element you are looking for, an O(n) operation, i.e. do linear search

Read more about Binary Search here.

 In linear search every element is compared by searching element till the last element so it takes O(n) time.

You can read more about Linear Search here

When we searching for a given element and want to find their position, it means we are doing searching. 

 If the record check linearly , it means we use linear search algorithm to search desire element.

In a sequential search total number of comparison will be (N+1)/2

In a best case, we can found out target element in just 1 comparison.

In the worst case, we might go for n comparisons, since we doing a successful search so at max we will able to find out target element at index n-1 if we start array indexing from 0.

So average number of comparisons in case of successful search = (n +1 )/2

Read more about linear search here

Binary search work on the sorted array so it compare the middle index of element, so it takes less time

Read more about Binary Search here.

Binary search only check the middle element of the array. when it check the middle element and middle element is not equal to the given elemen,t then we divide list in two sub part.

 It takes very less time in there is 6 element so it take Log(6+1) that is 0.845098.