Package g2301_2400.s2325_decode_the_message

Class Solution

java.lang.Object

g2301_2400.s2325_decode_the_message.Solution

public class Solution
extends Object

2325 - Decode the Message\. Easy You are given the strings `key` and `message`, which represent a cipher key and a secret message, respectively. The steps to decode `message` are as follows: 1. Use the **first** appearance of all 26 lowercase English letters in `key` as the **order** of the substitution table. 2. Align the substitution table with the regular English alphabet. 3. Each letter in `message` is then **substituted** using the table. 4. Spaces `' '` are transformed to themselves. * For example, given key = " **hap** p **y** **bo** y" (actual key would have **at least one** instance of each letter in the alphabet), we have the partial substitution table of (`'h' -> 'a'`, `'a' -> 'b'`, `'p' -> 'c'`, `'y' -> 'd'`, `'b' -> 'e'`, `'o' -> 'f'`). Return _the decoded message_. **Example 1:**  **Input:** key = "the quick brown fox jumps over the lazy dog", message = "vkbs bs t suepuv" **Output:** "this is a secret" **Explanation:** The diagram above shows the substitution table. It is obtained by taking the first appearance of each letter in " **the** **quick** **brown** **f** o **x** **j** u **mps** o **v** er the **lazy** **d** o **g** ". **Example 2:**  **Input:** key = "eljuxhpwnyrdgtqkviszcfmabo", message = "zwx hnfx lqantp mnoeius ycgk vcnjrdb" **Output:** "the five boxing wizards jump quickly" **Explanation:** The diagram above shows the substitution table. It is obtained by taking the first appearance of each letter in " **eljuxhpwnyrdgtqkviszcfmabo** ". **Constraints:** * `26 <= key.length <= 2000` * `key` consists of lowercase English letters and `' '`. * `key` contains every letter in the English alphabet (`'a'` to `'z'`) **at least once**. * `1 <= message.length <= 2000` * `message` consists of lowercase English letters and `' '`.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
String	decodeMessage(String key, String message)

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

decodeMessage

public String decodeMessage(String key,
 String message)