Solution: Greatest Common Divisor of Strings
Explore how to determine the greatest common divisor of two strings by checking if their concatenations match and using the Euclidean algorithm to find the length of the largest repeating pattern. Understand how to extract this divisor substring efficiently and apply it to solve coding interview problems.
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. ...