Why Are Sorting Algorithms Necessary?

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Why Are Sorting Algorithms Necessary?

Posted By sandesh sandy     March 16, 2023    

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One of the basic coding issues in algorithms and data structures is sorting. The important question is: Why do we research the creation and evaluation of sorting algorithms? 


Here are a few important discussions: 


  • By using sorting algorithms, we can learn different methods for addressing problems.

Several strategies can be used to tackle the sorting problem. In order to understand alternative ways of problem-solving, sorting algorithms are among the greatest suggestions.

Also, do check out the popular online DSA course, if you want to learn everything from the ground-up. 


  • Progressive strategy: On the concept of building a partial answer piecemeal, bubble sort, selection sort, and insertion sort are founded. One value is added to the appropriate spot on the sorted output at each outer loop iteration. The partially sorted array size will also rise by 1, and the unsorted sort will drop by 1 for each outer loop iteration.

  • Divide and conquer: Based on the divide and conquer strategy, merge sort and quicksort are the fastest sorting algorithms. We can successfully resolve a number of coding issues by employing a similar concept.

  • Two-pointer approach: The two-pointers strategy is well shown by the merging process in the merge sort and the partitioning process in quicksort. On the basis of the condition, we advance both points and construct the partial solution.

  • Using a data structure to solve issues: Heap sort and BST sort are two excellent examples. To do a heap sort, we first construct the input's max-heap structure and then constantly execute the heapify process to remove the max element. Similar to how we establish a BST from the input and then traverse the tree using in-order traversal to produce the sorted output, we also create a BST for the provided input in the BST sort. Both sorting algorithms operate in O(nlogn) time complexity, which is good news. Counting sort and bucket sort, on the other hand, use the direct addressing concept of hashing to sort the data given in a specific range.

  • A variety of coding problems can be resolved by sorting.

We can sometimes address code issues more effectively by sorting the data. To put it another way, sorting is a strategy used in DSA to solve problems. For instance, we can execute a single scan, utilize a binary search, or take a two-pointers technique after sorting the data to obtain the necessary output.

In some cases, our applications inevitably require sorting algorithms. In mobile phones, contact information is arranged alphabetically by name. Similarly, several algorithms incorporate sorting as a subroutine to achieve their goal.

  • The greatest way to learn to analyze algorithms is to analyze sorting algorithms.

Sorting is the greatest algorithm to learn about recursion and iteration's time and space complexity analyses. To study the best, worst, and average case analyses of various types of loops, for instance, analysis of Bucket sort, Insertion sort, Selection sort, Heap sort, and Counting sort, is a good idea. Like rapid sorts, merging sort analysis is a good way to learn about recursion analysis.

  • Sorting is helpful for comprehending various coding problem variations, boundary conditions, and code optimization methods.

There are many sorting problems besides arranging the data in ascending or descending order. Nonetheless, sorting algorithms are beneficial to learn since they teach programmers how to handle boundary conditions (base case, initialization, termination, post-termination situation, the scenario of repeated components, etc.) in iterative and recursive code.

These are a few prevalent examples of sorting puzzles:


  • Character Sort by Frequency
  • Utilizing a stack, sort a stack
  • Order a waveform's array.
  • Sort a collection of 0s, 1s, and 2s.
  • Sorting a graph using topology
  • Order an array by parity.
  • Sort an array using a different array's defined order
  • Sort the items that are even in ascending order and those that are odd in descending order.

Learning sorting algorithms is a wonderful way to learn about methods for code optimization. For instance, we can optimize the code for bubble sort using a flag variable, the code for insertion sort using binary search, the code for quick-sort utilizing the concept of insertion sort, etc. On that note, if you want to learn in detail about sorting algorithms and other concepts of DSA, join an instructor-led data structures and algorithms course, offered by Learnbay and get ready to crack interviews. 

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