Package g0301_0400.s0394_decode_string

Class Solution

java.lang.Object

g0301_0400.s0394_decode_string.Solution

public class Solution
extends Object

394 - Decode String\. Medium Given an encoded string, return its decoded string. The encoding rule is: `k[encoded_string]`, where the `encoded_string` inside the square brackets is being repeated exactly `k` times. Note that `k` is guaranteed to be a positive integer. You may assume that the input string is always valid; No extra white spaces, square brackets are well-formed, etc. Furthermore, you may assume that the original data does not contain any digits and that digits are only for those repeat numbers, `k`. For example, there won't be input like `3a` or `2[4]`. **Example 1:** **Input:** s = "3[a]2[bc]" **Output:** "aaabcbc" **Example 2:** **Input:** s = "3[a2[c]]" **Output:** "accaccacc" **Example 3:** **Input:** s = "2[abc]3[cd]ef" **Output:** "abcabccdcdcdef" **Example 4:** **Input:** s = "abc3[cd]xyz" **Output:** "abccdcdcdxyz" **Constraints:** * `1 <= s.length <= 30` * `s` consists of lowercase English letters, digits, and square brackets `'[]'`. * `s` is guaranteed to be **a valid** input. * All the integers in `s` are in the range `[1, 300]`.

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
String	decodeString(String s)

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

decodeString

public String decodeString(String s)