Which of the following operations can be performed in constant time on an array?
Practice Questions
Q1
Which of the following operations can be performed in constant time on an array?
Insertion at end
Deletion from beginning
Accessing an element
Insertion at beginning
Questions & Step-by-Step Solutions
Which of the following operations can be performed in constant time on an array?
Step 1: Understand what an array is. An array is a collection of items stored at contiguous memory locations.
Step 2: Learn about indexing. Each item in an array can be accessed using an index, which is a number that represents the item's position in the array.
Step 3: Know what constant time means. Constant time, denoted as O(1), means that the time it takes to perform an operation does not change, regardless of the size of the array.
Step 4: Realize that accessing an element by its index is a direct operation. For example, if you want the first item in an array, you simply use index 0.
Step 5: Conclude that since accessing an element by its index takes the same amount of time no matter how large the array is, it is considered a constant time operation.
