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g0301_0400.s0385_mini_parser.readme.md Maven / Gradle / Ivy

385\. Mini Parser

Medium

Given a string s represents the serialization of a nested list, implement a parser to deserialize it and return _the deserialized_ `NestedInteger`.

Each element is either an integer or a list whose elements may also be integers or other lists.

**Example 1:**

**Input:** s = "324"

**Output:** 324

**Explanation:** You should return a NestedInteger object which contains a single integer 324.

**Example 2:**

**Input:** s = "[123,[456,[789]]]"

**Output:** [123,[456,[789]]]

**Explanation:** 
Return a NestedInteger object containing a nested list with 2 elements: 
1. An integer containing value 123. 
2. A nested list containing two elements:
   
   i. An integer containing value 456. 
   
    ii. A nested list with one element:
        
    a. An integer containing value 789

**Constraints:**

*   1 <= s.length <= 5 * 104
*   `s` consists of digits, square brackets `"[]"`, negative sign `'-'`, and commas `','`.
*   `s` is the serialization of valid `NestedInteger`.
*   All the values in the input are in the range [-106, 106].