Package g1001_1100.s1071_greatest_common_divisor_of_strings

Class Solution

java.lang.Object
g1001_1100.s1071_greatest_common_divisor_of_strings.Solution
public class Solution extends java.lang.Object
1071 - Greatest Common Divisor of Strings.

Easy

For two strings s and t, we say “t divides s” if and only if s = t + ... + t (i.e., t is concatenated with itself one or more times).

Given two strings str1 and str2, return the largest string x such that x divides both str1 and str2.

Example 1:

Input: str1 = “ABCABC”, str2 = “ABC”

Output: “ABC”

Example 2:

Input: str1 = “ABABAB”, str2 = “ABAB”

Output: “AB”

Example 3:

Input: str1 = “LEET”, str2 = “CODE”

Output: ""

Constraints:

  • 1 <= str1.length, str2.length <= 1000
  • str1 and str2 consist of English uppercase letters.

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.lang.String
    gcdOfStrings(java.lang.String str1, java.lang.String str2)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • gcdOfStrings

      public java.lang.String gcdOfStrings(java.lang.String str1, java.lang.String str2)