In this video, we'll learn how to convert a string to a zigzag pattern. A zigzag pattern is a sequence of characters that alternates between going up and down. The problem asks to convert a given string into a zigzag pattern with a given number of rows, and then read the converted string row by row. One way to approach the problem is to simulate the process of converting the given string into the zigzag pattern by iterating over the string and filling each row in the pattern.