How dinesh2006-dudi/neetcode-submissions works
Purpose and Scope
This is a NeetCode GitHub Sync repository containing standalone C++ solutions to data-structure and algorithm interview problems. It is a solution archive, not an integrated application: no shared runtime, build system, service layer, or internal package boundaries are present.
Entry Points and Execution Model
Each submission-0.cpp is an independent problem submission and is the effective execution entry point when copied into NeetCode’s C++ judge environment. Examples:
• Data Structures & Algorithms/two-integer-sum/submission-0.cpp
• Data Structures & Algorithms/valid-sudoku/submission-0.cpp
• Data Structures & Algorithms/string-encode-and-decode/submission-0.cpp
The repository itself provides no executable dispatcher or unified command to run all solutions.
Organization Boundary
The primary architectural boundary is problem isolation. The top-level topic directory, Data Structures & Algorithms/, groups related exercises; each child folder represents one problem; each submission file represents a versioned answer. There are no indicated dependencies between problem folders.
Representative boundaries:
• Data Structures & Algorithms/anagram-groups/submission-0.cpp
• Data Structures & Algorithms/longest-consecutive-sequence/submission-0.cpp
• Data Structures & Algorithms/products-of-array-discluding-self/submission-0.cpp
Algorithm Families
Solutions span core interview-algorithm categories, each implemented locally within its problem submission:
• Hashing and frequency/set lookup: duplicate-integer, is-anagram, and anagram-groups.
• Two-pointer and ordered-array traversal: two-integer-sum-ii and is-palindrome.
• Array scans and prefix/suffix computation: buy-and-sell-crypto and products-of-array-discluding-self.
• Heap or frequency ranking: top-k-elements-in-list.
• Matrix/constraint validation: valid-sudoku.
Data and Control Flow
For a given problem, the external judge supplies inputs to the submission’s expected solution interface; local algorithm logic transforms them into the required output. State is in-memory and ephemeral: arrays, strings, hash maps/sets, and result collections. No data persists across submissions or between runs.
Encoding/decoding is a localized bidirectional transformation boundary in:
• Data Structures & Algorithms/string-encode-and-decode/submission-0.cpp
External Infrastructure
NeetCode.io is the upstream authoring and execution platform, while GitHub is the synchronized storage target. The README identifies NeetCode’s GitHub Sync as the publication mechanism; accepted or configured submissions are auto-committed or bulk-synced. No database, API client, cloud runtime, CI system, or external application service is represented in the file tree.
Main entry points: two-integer-sum/submission-0.cpp Two Integer Sum · valid-sudoku/submission-0.cpp Valid Sudoku · string-encode-and-decode/submission-0.cpp String Encode and Decode · anagram-groups/submission-0.cpp Anagram Groups
Components 14
External Platform
- NeetCode.io · Supplies problem inputs and hosts C++ solution execution.
- GitHub Sync · Synchronizes accepted or configured submissions to the repository.
GitHub Solution Archive
Problem folders are isolated; submissions have no shared runtime or dependencies.
- Solution repository · Stores standalone NeetCode C++ submissions.
- Data Structures & Algorithms
- Two Integer Sum
Data Structures & Algorithms/two-integer-sum/submission-0.cpp - Valid Sudoku
Data Structures & Algorithms/valid-sudoku/submission-0.cpp - String Encode and Decode · Locally encodes and decodes strings in memory.
Data Structures & Algorithms/string-encode-and-decode/submission-0.cpp - Anagram Groups
Data Structures & Algorithms/anagram-groups/submission-0.cpp - Longest Consecutive Sequence
Data Structures & Algorithms/longest-consecutive-sequence/submission-0.cpp - Products Except Self
Data Structures & Algorithms/products-of-array-discluding-self/submission-0.cpp - Two Integer Sum II
Data Structures & Algorithms/two-integer-sum-ii/submission-0.cpp - Is Palindrome
Data Structures & Algorithms/is-palindrome/submission-0.cpp - Buy and Sell Crypto
Data Structures & Algorithms/buy-and-sell-crypto/submission-0.cpp - Top K Elements
Data Structures & Algorithms/top-k-elements-in-list/submission-0.cpp
Connections 16
- NeetCode.io → GitHub Sync: syncs submissions
- GitHub Sync → Solution repository: publishes
- Solution repository → Data Structures & Algorithms: contains
- Data Structures & Algorithms → Two Integer Sum: isolated problem
- Data Structures & Algorithms → Valid Sudoku: isolated problem
- Data Structures & Algorithms → String Encode and Decode: isolated problem
- Data Structures & Algorithms → Anagram Groups: isolated problem
- Data Structures & Algorithms → Longest Consecutive Sequence: isolated problem
- Data Structures & Algorithms → Products Except Self: isolated problem
- Data Structures & Algorithms → Two Integer Sum II: isolated problem
- Data Structures & Algorithms → Is Palindrome: isolated problem
- Data Structures & Algorithms → Buy and Sell Crypto: isolated problem
- Data Structures & Algorithms → Top K Elements: isolated problem
- NeetCode.io → Two Integer Sum: judge input/output
- NeetCode.io → Valid Sudoku: judge input/output
- NeetCode.io → String Encode and Decode: judge input/output