What is the complexity of adding elements to the beginning of an array?

Adding an element to the beginning of an array typically has a complexity of O(n), where n is the number of elements in the array. This is because all existing elements need to be shifted one position to the right to make space for the new element at the start. In dynamic arrays, such as Array in Swift, inserting at the beginning is not optimized and requires moving all elements, unlike adding at the end, which is often amortized O(1).