A subarray is a contiguous sequence of elements within an array (or list). In other words, it's a portion of an array that consists of consecutive elements. For example, if you have an array [1, 2, 3, 4, 5], some possible subarrays could be [1, 2, 3], [2, 3, 4], [4, 5], or even the entire array [1, 2, 3, 4, 5].
Subarrays are often used in algorithms and programming tasks to analyze or manipulate portions of data within an array efficiently. They are fundamental in solving many problems, such as finding the maximum sum subarray, searching for a particular pattern, or performing sliding window techniques, among others.
