An array similar to a phone book has 1000 names arranged as names [0], names[1]....names[999]. Nancy wants to search a name X in
this array. Which of the following preconditions must she ensure to perform a binary search? a. The list has a large number of names.
b. The name X is present in the list.
In addition to the two statements above, which of the following is correct?
a. There should be no duplicates in the list.
b. The names in the list should be alphabetical order.
c. The name X should occur near the middle of the list.
b. The names in the list should be in alphabetical order.
Explanation:
A binary search is an algorithm used for searching for an item in a list or array. The algorithm first sorts the data structure into order and then divides it into halves. If the searched item is less than the middle item in the list, then the algorithm searches for the target in the first half, else, in the second half. This reduces the time complexity of the search.
The answer is C because your sideview and rearview mirrors are there specifically to check behind you, while the vanity mirror is not supposed to be used for the same purpose.
User Acceptance Testing (UAT) is the testing done by end users who is going to use that application. In these testing they will test whether the application meets all the functional requirements of the end user. If it passed then only the application will move to the production. This will ensure that the application meets the user requirements before it put into the usage.
