Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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2. Divisibility Of Strings
As part of an assignment, a student is required to find whether a given string s is
divisible by string t If it is divisible, the student needs to find the length of the smallest
string x such that if x is concatenated any number of times, we get both s and t. If this is
not possible, the student needs to print -1. Help find the length of the smallest string x.
A string s is said to be divisible by string tif string t can be concatenated some number
of times to get string s.
Example:
s = bcdbcdbcd
t = bcdbcd
If string t is concatenated twice, the result is bcdbcdbcdbcd > s. String s is not divisible
by string t, so the result is -1.
Example:
s = bcdbcdbcdbcd
t = bcdbcd
If string t is concatenated twice, the result is bcdbcdbcdbcd = s. String s is divisible by
string t. The smallest string x that can be concatenated to create both
strings s and t is bcd. Its length is 3.
Function Description
Complete the function findSmallestDivisor in the editor below. The function should
return a single integer denoting the length of smallest string x.
findSmallestDivisor has the following parameter(s):
5: string s
t: string t
Constraints
• 1s size of s s 2 x 105
• 1s size of t s 2 x105
• size of t s size of s
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Transcribed Image Text:2. Divisibility Of Strings As part of an assignment, a student is required to find whether a given string s is divisible by string t If it is divisible, the student needs to find the length of the smallest string x such that if x is concatenated any number of times, we get both s and t. If this is not possible, the student needs to print -1. Help find the length of the smallest string x. A string s is said to be divisible by string tif string t can be concatenated some number of times to get string s. Example: s = bcdbcdbcd t = bcdbcd If string t is concatenated twice, the result is bcdbcdbcdbcd > s. String s is not divisible by string t, so the result is -1. Example: s = bcdbcdbcdbcd t = bcdbcd If string t is concatenated twice, the result is bcdbcdbcdbcd = s. String s is divisible by string t. The smallest string x that can be concatenated to create both strings s and t is bcd. Its length is 3. Function Description Complete the function findSmallestDivisor in the editor below. The function should return a single integer denoting the length of smallest string x. findSmallestDivisor has the following parameter(s): 5: string s t: string t Constraints • 1s size of s s 2 x 105 • 1s size of t s 2 x105 • size of t s size of s
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