Solution: Greatest Common Divisor of Strings
Explore how to determine the largest string dividing two given strings by verifying equal concatenations and computing the greatest common divisor of their lengths. Understand the algorithm to extract the base pattern that forms both strings, and analyze its time and space complexities for efficient problem solving.
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. ...