Subarray meaning in DSA Last Updated : 23 Jul, 2025 Comments Improve Suggest changes Like Article Like Report A subarray is a portion of an array that consists of consecutive elements from the original array. SubarrayCharacteristics of a Subarray:Contiguity: The elements in a subarray are contiguous, meaning they are consecutive and in order in the original array.Length: The length of a subarray can be any positive integer, from 1 to the length of the original array.Element Selection: The elements in a subarray are selected from the original array.Difference between Subarray and subsequence:Subarray SubsequenceA sequence that is formed by picking any number of consecutive elements from an array Sequence that is formed by deleting any number of elements from any position of the arrayElements are consecutive and in the same order as in the original arrayNot necessarily consecutive but in the same order as in the original sequenceAll subarrays are also a subsequence of the arrayNot all subsequences are subarrays.The number of possible subarrays is lessThe number of possible subsequences is moreApplications of Subarray:Array Processing: Subarrays can be used to perform operations on smaller chunks of data stored in an array, rather than processing the entire array at once. This can be more efficient for large arrays and can also be useful for processing arrays in parallel.String Processing: In string processing, subarrays can be used to find substrings or to perform operations on substrings, such as searching, pattern matching, and manipulation.Application of maximum subarray sum: This problem has several applications in fields like "genomic sequence analysis" and "computer vision".What else can you read?Subarray, Subsequences and Subsets in ArraySubarray vs Subsequence Comment More infoAdvertise with us Next Article Analysis of Algorithms R raiankitsr Follow Improve Article Tags : DSA Arrays Definitions and Meanings subarray Practice Tags : Arrays Similar Reads Basics & PrerequisitesLogic Building ProblemsLogic building is about creating clear, step-by-step methods to solve problems using simple rules and principles. 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