Mastering Array Operations: Insertion and Deletion in Fixed-Size Arrays

Arrays are a fundamental data structure in programming, widely used across various applications due to their simplicity and efficiency. However, a common challenge with fixed-size arrays is their inability to dynamically expand or shrink, making insertion and deletion operations crucial skills for developers. In this article, we will delve into how to efficiently insert and delete elements in a fixed-size array.

Insertion in a Fixed-Size Array

Insertion in an array involves placing an element at a specific index while shifting the existing elements accordingly. If the array has enough allocated space, inserting an element is straightforward. The complexity of this operation depends on the position where the insertion occurs.

Insertion at an Index

To insert an element at a given index:

1. Ensure the index is within bounds.
2. Shift all elements from the insertion point one position to the right.
3. Insert the new element at the specified index.

Example:

# Function to insert an element at a specific index
def insertAtIndex(arr, sizeOfArray, index, element):
    if 0 <= index < sizeOfArray:
        for i in range(sizeOfArray - 1, index, -1):
            arr[i] = arr[i - 1]
        arr[index] = element

Insertion at the End