Search⌘ K
AI Features

String Compression

Explore how to apply the two pointers technique to compress strings directly within the input array. Learn to identify groups of repeating characters and represent counts efficiently, including multi-digit lengths. This lesson helps you master an in-place algorithm that uses constant extra space and returns the new length of the compressed array.

Statement

Given an array of characters, chars, compress it in place according to the following rules: ...