Solution: Greatest Common Divisor of Strings
Explore how to identify the largest string that divides two input strings by verifying concatenation equality and applying the greatest common divisor of string lengths. Understand the logic and implement an efficient solution with optimal time and space complexity for this common coding challenge.
We'll cover the following...
We'll cover the following...
Statement
For two strings s and t, we say that t divides s if and only if s can be formed by concatenating one or more copies of t together (i.e., s = t + t + ... + t).
Given two strings str1 and str2, return the largest string x such that x divides both str1 and str2. If no such string exists, return an empty string.
Constraints:
str1.length,str2.lengthstr1andstr2consist of English uppercase letters. ...