Selection sort algorithm is a popular sorting algorithm used in the field of data structure. It is a simple and intuitive sorting technique that works by dividing the input array into two parts: the sorted part and the unsorted part.
The algorithm repeatedly selects the smallest (or largest, depending on the desired order) element from the unsorted part and swaps it with the first element of the unsorted part. This process continues until the entire array is sorted.
How does Selection Sort Algorithm work?
The selection sort algorithm can be implemented in a stepbystep manner:

First, find the minimum element in the unsorted part of the array.

Swap this minimum element with the first element of the unsorted part.

Now, consider the next element in the unsorted part and repeat steps 1 and 2 until all elements are sorted.
This algorithm works by iteratively finding and swapping elements to gradually build a sorted portion of the array. The selection sort algorithm has a time complexity of O(n^2), making it inefficient for large datasets. However, it performs well for small datasets or arrays that are almost sorted.
Example:
To better understand how selection sort works, let’s consider an example:
Input Array: [5, 3, 8, 4, 2]
In each iteration of selection sort:
[2, 3, 8, 4, 5]
[2, 3, 8, 4, 5]
[2, 3, 4, 8, 5]
[2, 3, 4,
5,
s]8]
The array is now sorted in ascending order.
Conclusion:
The selection sort algorithm is a simple and easytounderstand sorting technique. Although it may not be the most efficient algorithm for large datasets, it can be useful for small datasets or arrays that are already partially sorted. Understanding different sorting algorithms is crucial in the field of data structure as it helps in choosing the most appropriate algorithm for specific scenarios.
9 Related Question Answers Found
What Is Selection Sort in Data Structure? Sorting is a fundamental operation in computer science, and there are several algorithms available to accomplish this task efficiently. One such algorithm is Selection Sort.
What Is Selection Sort in Data Structure With Example? Selection sort is a simple comparisonbased sorting algorithm. It works by dividing the input array into two parts: sorted and unsorted.
Selection sort is one of the simplest sorting algorithms in data structures. It operates by repeatedly finding the minimum element from the unsorted portion of the array and placing it at the beginning. This process continues until the entire array is sorted.
What Is Selection Sorting in Data Structure? The selection sort algorithm is one of the simplest sorting algorithms used in computer science. It works by repeatedly finding the minimum element from the unsorted part of an array and placing it at the beginning.
What Is Selection in Data Structure? In data structure, selection is a process of retrieving a specific element from a collection of data based on certain criteria. It involves searching through the data and choosing the desired element that meets the specified conditions.
Data structures are an essential part of computer science and programming. They provide a way to organize and store data efficiently. One such data structure is the selection tree.
Count Sort is a sorting algorithm that operates on a set of integers. It is an efficient sorting technique that works well when the range of input values is small compared to the number of elements to be sorted. Count Sort is a noncomparison based sorting algorithm, which means it does not rely on comparing elements to determine their order.
What Is Linear Sort in Data Structure? In the field of data structures and algorithms, sorting plays a crucial role in organizing and manipulating data efficiently. One such sorting algorithm is linear sort, which operates on a linear list of elements.
Sorting is a fundamental operation in data structures and algorithms. It involves arranging a collection of items in a specific order. There are various sorting techniques available, each with its own advantages and disadvantages.