2. Java: Encryption Decryption Decrypt a message that was encrypted using the following logic: • First the words in the sentence are reversed. For example, "welcome to hackerrank" becomes "hackerrank to welcome". • For each word, adjacent repeated letters are compressed in the format . For example, "mississippi" becomes "mis2is2ip2i" or "baaa" becomes "ba3". Note the format is not applied for characters with frequency 1. Also, the frequency will be no greater than 9. Return the decrypted string. Example encrypted Message = 'world hel2o' Expand each word to get 'world hello'. Now reverse the words to get 'hello world', the return value. Function Description Complete the function decrypt in the editor below. decrypt has the following parameter(s): string encrypted Message: an encrypted string Returns string: the decrypted message Constraints • 1 s length of encryptedMessages 105 Character frequency counts in the encrypted string will be 9 or less. encrypted Message consists of words and spaces. Words consist of lower case English letters and digits from 0 to 9.
2. Java: Encryption Decryption Decrypt a message that was encrypted using the following logic: • First the words in the sentence are reversed. For example, "welcome to hackerrank" becomes "hackerrank to welcome". • For each word, adjacent repeated letters are compressed in the format . For example, "mississippi" becomes "mis2is2ip2i" or "baaa" becomes "ba3". Note the format is not applied for characters with frequency 1. Also, the frequency will be no greater than 9. Return the decrypted string. Example encrypted Message = 'world hel2o' Expand each word to get 'world hello'. Now reverse the words to get 'hello world', the return value. Function Description Complete the function decrypt in the editor below. decrypt has the following parameter(s): string encrypted Message: an encrypted string Returns string: the decrypted message Constraints • 1 s length of encryptedMessages 105 Character frequency counts in the encrypted string will be 9 or less. encrypted Message consists of words and spaces. Words consist of lower case English letters and digits from 0 to 9.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Java
Transcribed Image Text:2. Java: Encryption Decryption
Decrypt a message that was encrypted using the following logic:
• First the words in the sentence are reversed. For example, "welcome to hackerrank" becomes "hackerrank to
welcome".
• For each word, adjacent repeated letters are compressed in the format <character><frequency>. For example,
"mississippi" becomes "mis2is2ip2i" or "baaa" becomes "ba3". Note the format is not applied for characters with
frequency 1. Also, the frequency will be no greater than 9.
Return the decrypted string.
Example
encrypted Message = 'world hel2o'
Expand each word to get 'world hello'. Now reverse the words to get 'hello world', the return value.
Function Description
Complete the function decrypt in the editor below.
decrypt has the following parameter(s):
string encrypted Message: an encrypted string
Returns
string: the decrypted message
Constraints
• 1 s length of encrypted Messages 105
• Character frequency counts in the encrypted string will be 9 or less.
• encryptedMessage consists of words and spaces. Words consist of lower case English letters and digits from 0
to 9.
► Input Format For Custom Testing
▾ Sample Case 0
Sample Input For Custom Testing
seaside the to sent be to ne2ds army ten of team a
Sample Output
a team of ten army needs to be sent to the seaside
► Sample Case 1
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