Solution: Greatest Common Divisor of Strings
Understand how to find the greatest common divisor of two strings by checking concatenation consistency and using the Euclidean algorithm to derive the largest base repeating pattern. This lesson guides you through verifying pattern repeats and extracting the common divisor substring efficiently.
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. ...