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2023-08-07 (as of)

The document details the changes between this version, local leetcode 0.9.4.2 and previous version, local leetcode 0.9.4.1.

  • add parser for MountainArray (problem no.1095)

  • add parser for functor Guess (problem no.374), whose int operator()(int num) is implemented to mimic the behavior of int guess(int num) in the problem. The usage is defining the method int guessNumber(int n, Guess guess) and using int, int for the input.

  • add parser for functor IsBadVersion (problem no.278). the usage is similar to Guess.

  • add parser for class Master (problem no.843)

    • construct the input as [secret, words, allowedGuesses], words
      • three components are needed to construct Master and bundled by []
    • define the method in the following way, void findSecretWord(Master& master, vector<string>& words), put master as the first argument
      • for the purpose of being in line with other general implementations
      • don't feel necessary to write specialization for this one particular problem
    • the implementation uses internal runtime exception ll::EarlyStop to early stop the method
      • std::runtime_exception is known to cause issue on some platforms with libc++ and ASAN
      • set environment variable ASAN_OPTIONS=alloc_dealloc_mismatch=0 to ignore the issue.

2023-06-08

The document details the changes between this version, local leetcode 0.9.4.1 and previous version, local leetcode 0.9.4.0.

  • the use of libc++ is no longer enforced. to enable it please add -DUSE_LIBC++ in cmake arguments

  • further optimized/simplified internal input_parameter to support n-dim (n >= 2) vector of pointers

    • 0-dim (single raw pointer) case is absorbed by in the same specialization now
    • non-pointer case is absorbed by the same specialization now. technically speaking these is no partial specialization now, template class only.
    • changed internal implementations (use universal_destroyer<...> to manage memories instead of unique_ptr<>) to enable this feature
    • several type traits added for the implementation of the feature
    • new example added as test for the feature

  • substring operations are now replaced by string_view to achieve better performance, especially for long inputs

  • parsers for integers are now implemented in template (not specializations in src/parser.cpp)

  • fix the print precision of double type by std::setprecision(6)

2023-02-11

The document details the changes between this version, local leetcode 0.9.4.0 and previous version, local leetcode 0.9.3.4.

  • add parser for type bool (unquoted true or false)

  • add examples to test if they are built. please execute make test to invoke tests

  • support raw array (e.g. Node* []) of fixed size or variable size (need to pass length as second parameter) in functor universal_destroyer<Tp[]>.

  • update debugger configurations in examples/

    • migrate from outdated lldb-mi to lldb-vscode
    • fix the deprecated parameter stopAtEntry to stopOnEntry

  • optimize internal classes/functions

    • use std::make_unique to replace redundant internal::class_factory for class ctor
    • use std::unique_ptr<value_type[]> to manage memory for input parameters * note: remaining explicit new and delete operators exist in src/. migrating them to smart pointers will only affect the performance negatively while provide no visible benefit. thus, there will be NO plan to optimize them (e.g. src/io/parser.cpp) unless fatal bugs are found.

2022-09-23

The document details the changes between this version, local leetcode 0.9.3.4 and previous version, local leetcode 0.9.3.3.

  • add int rand7() function to generate random integer over $[1, 7]$, and expose it from namespace

  • add include <stack> in header file for convenience

  • add explicit print format for double to be in line with official output.

  • fix the logic mistake in printing NaryTreeNode which may result in redundant null

  • fix the wrong operator implementation in type Sea, i.e. operator== to operator=

  • fix the logic mistake of not being able to print empty NestedInteger

  • fix the logic of failing to parse '\'' inside a doubly quoted string

  • minor fixes/updates on README.md and other files

2022-04-28

The document details the changes between this version, local leetcode 0.9.3.3 and previous version, local leetcode 0.9.3.2.

  • add FAQ section to README.md

  • minor fixes on internal functions/classes and documents

  • update (simplify) the implementation of internal property to meet c++17 standards

  • update the internal function pointer traits

2022-03-23

The document details the changes between this version, local leetcode 0.9.3.2 and previous version, local leetcode 0.9.3.1.

  • add move constructor and assignment for type NestedInteger

  • migrate from raw pointers to std::unique_ptr in file include/core/classes.hpp (not input_parameters.hpp) to simplify allocation and release of memories.

  • check explicitly whether all methods are from the same class for Design problems by static_assert with pertinent error message.

  • minor fixes on README.md

2022-03-16

The document details the changes between this version, local leetcode 0.9.3.1 and previous version, local leetcode 0.9.2.1.

  • add parser and printer for type RandomTreeNode (i.e. binary tree node with one random pointer to a node in the tree)

  • fix the logic mistake of the type of Setter in class property.

  • minor fixes on function documentation

2022-03-04

The document details the changes between this version, local leetcode 0.9.2.1 and previous version, local leetcode 0.9.1.1.

  • add printer for type NaryTreeNode

  • minor fixes on function documentation

2022-02-21

The document details the changes between this version, local leetcode 0.9.1.1 and previous version, local leetcode 0.9.1.0.

  • allows AppleClang as compiler

  • add sample vscode configurations in examples/ directory

  • enable commentting out test cases by adding # at the beginning of the line

  • add feature to control the maximum number of elements of array to be printed

  • add move ctor to Sea type

  • fixed typos in README.md

2022-02-14

The document details the changes between this version, local leetcode 0.9.1.0 and previous version, local leetcode 0.9.0.0.

  • fixed wrong information in README.md

    • header-only version is forthcoming, not available now.

  • fixed level of section titles to increase readability in README.md

  • fixed omitted part in README.md

    • macros of Node types
    • dynamic link related suggestions after build

  • add hyperlink for files or directories mentioned in README.md

  • add example of working directory structure in README.md

  • deleted unused code block in comment (in include/io/destroyer.hpp::193)

  • add support for Sea type (problem no.1274)

2022-02-07

Release of local leetcode 0.9.0.0