What is the time complexity of inserting an element at the end of an array?

Inserting an element at the end of an array is a common operation in computer programming, especially for dynamic data structures that require frequent updates. The time complexity of this operation depends on the length of the array, as well as the implementation of the data structure. In an array with a fixed size, inserting an element at the end of the array requires copying all the elements of the array to a new array with a larger size, and then adding the new element to the end of the new array. This operation takes linear time, or O(n), wh....