<ul data-eligibleForWebStory="false"><li>The article discusses the concept of using a difference array to efficiently update ranges in an array in O(1) time complexity.</li><li>Instead of updating each element individually, you mark the start and end positions of changes, and then process the array once to apply the updates.</li><li>The key advantage is efficiency during multiple updates as changes are recorded first and applied together in a single pass at the end.</li><li>The example provided illustrates how to update a range in an array by using difference array technique for optimal time complexity.</li></ul>

Difference Array | Range update in O(1) |DSA |Leetcode | Time complexity

Discover more