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About
Coding Interview Question Online Training System. Focus on algorithm. No parsing input/output anymore. Industrial standard lint helps you write the most beautiful code. Step by step training. Coding for fun. Want more practises can filter by difficulty, algorithm and data structure? Check out our interview questions. LintCode has the most interview problems covering Google, Facebook, Linkedin, Amazon, Microsoft and so on. We provide Chinese and English versions of the challenges. Solve challenges such as: Implement an API to Access User Data, Implement Decorator with Parameters, Exception Handling, Implementing a shopping cart program, Replace the elements in a string, The number of the two numbers in the list whose sum is equal to n, Print out SMS verification code, Import a module and alias it, Importing a module, Search for a lecturer number, Print Zero, Even and Odd Number Interleave, Implement timer decorator, and many more.
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About
kodwai is a platform where developers solve real coding challenges on their own machine with their own AI coding agent (Claude Code, Cursor, or Codex) and get scored on how well they direct the agent, across three axes: Direction, Outcome, and Lift. Pick a ticket-sized challenge (a multi-tenant rate limiter, an idempotent ETL pipeline, a Raft-lite log), run npx @kodwai/cli@latest challenge <slug> to pull the problem, starter code and tests into a fresh git repo, solve it the way you actually work, then run npx @kodwai/cli@latest submit. The score is 0 to 100, and every signal cites evidence from your transcript, commits and test runs. Free for developers with a public profile and leaderboard. Hiring teams can run private real-world interviews and see how candidates work with AI agents: the prompts, the recovery, the verification, the result.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Supported
Mac
Supported
Linux
Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Companies in search of a coding interview question online training system solution to conduct technical interviews
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Audience
Software developers who code with AI agents, and engineering teams hiring for AI-assisted development
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
No information available.
Free Version
Not Supported
Free Trial
Not Supported
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Pricing
Free
Free for developers: 3 scored submissions on kodwai's key, then connect your own Anthropic API key for unlimited submissions. The challenges, score, public profile and leaderboard are free. Hiring track for teams: contact us for pricing.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationLintCode
China
www.lintcode.com/en/
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Company Informationkodwai
Istanbul, Turkey
www.kodwai.com
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Alternatives |
Alternatives |
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Categories |
Categorieskodwai is a coding challenge platform built for agentic coding. Challenges are realistic, ticket-sized tasks (from a bookshelf REST API to a Raft-lite log) and each one hides a few traps that a single prompt tends to miss. You solve them locally with your own AI coding agent, and the score reflects how well you directed it, not just whether the tests passed: Direction, Outcome and Lift, from 0 to 100, with evidence for every signal. There is a public leaderboard, a Direction rating that moves with every scored run, and a weekly league. |
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Integrations
Claude
Not Supported
Claude Code
Not Supported
Codex CLI
Not Supported
Cursor
Not Supported
Git
Not Supported
Node.js
Not Supported
OpenAI Codex
Not Supported
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Integrations
Claude
Supported
Claude Code
Supported
Codex CLI
Supported
Cursor
Supported
Git
Supported
Node.js
Supported
OpenAI Codex
Supported
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