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5 KiB
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159 lines
No EOL
5 KiB
Text
*cp.txt* Competitive programming plugin for Neovim
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Author: frozen <frozen@example.com>
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License: Same terms as Vim itself (see |license|)
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INTRODUCTION *cp* *cp.nvim*
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CP.nvim is a competitive programming plugin that automates problem setup,
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compilation, and testing workflow for online judges.
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Supported platforms:
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- AtCoder
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- Codeforces
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- CSES
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COMMANDS *cp-commands*
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*:CP*
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:CP {contest} Set up contest environment for {contest}.
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Creates build/ and io/ directories.
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Available contests: atcoder, codeforces, cses
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:CP {contest} {problem} Set up problem from {contest}. Scrapes test
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cases and creates source file.
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:CP {contest} {problem} {letter}
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For AtCoder/Codeforces: set up problem with
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specific letter (a, b, c, etc.)
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:CP {problem} Set up {problem} in current contest mode.
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Requires contest to be set first.
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:CP run Compile and run current problem with test input.
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Shows execution time and output comparison.
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:CP debug Compile with debug flags and run current problem.
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Includes sanitizers and debug symbols.
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:CP diff Enter diff mode to compare actual vs expected
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output. Run again to exit diff mode.
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CONFIGURATION *cp-config*
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Configure CP.nvim by calling setup() in your init.lua: >
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require('cp').setup({
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contests = {
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atcoder = {
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cpp_version = 23,
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timeout_ms = 3000,
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},
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custom = {
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cpp_version = 20,
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compile_flags = {"-O2", "-DLOCAL"},
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debug_flags = {"-g", "-fsanitize=address"},
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timeout_ms = 2000,
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},
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},
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snippets = {
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-- LuaSnip snippets for contest types
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},
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hooks = {
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before_run = function(problem_id)
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-- Called before running problem
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end,
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before_debug = function(problem_id)
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-- Called before debugging problem
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end,
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},
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})
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Configuration options:
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contests Dictionary of contest configurations.
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Each contest inherits from 'default'.
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cpp_version C++ standard version (17, 20, 23, etc.)
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compile_flags List of compiler flags for release builds
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debug_flags List of compiler flags for debug builds
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timeout_ms Execution timeout in milliseconds
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snippets Custom LuaSnip snippets by contest type
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hooks Functions called at specific events
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before_run Called before :CP run
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before_debug Called before :CP debug
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WORKFLOW *cp-workflow*
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1. Set up contest environment: >
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:CP atcoder
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<
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2. Set up specific problem: >
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:CP abc123 a
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<
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This creates abc123a.cc and scrapes test cases to io/abc123a.in and
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io/abc123a.expected
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3. Write solution in abc123a.cc
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4. Test solution: >
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:CP run
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<
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Output appears in vertical split showing execution time, output, and
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whether it matches expected output.
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5. Debug if needed: >
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:CP debug
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<
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6. Compare outputs visually: >
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:CP diff
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<
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Enters 3-way diff mode with actual, expected, and input files.
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FILE STRUCTURE *cp-files*
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After setting up a problem, your directory structure looks like: >
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problem.cc # Source file
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build/ # Compiled executables
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io/
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problem.in # Test input
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problem.out # Actual output
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problem.expected # Expected output
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The plugin manages all files automatically. You only need to edit the
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source file.
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HEALTH CHECK *cp-health*
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Run |:checkhealth| cp to verify your setup:
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- Neovim version compatibility
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- uv package manager availability
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- Python virtual environment status
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- Problem scrapers presence
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- LuaSnip integration
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- Directory structure
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TROUBLESHOOTING *cp-troubleshooting*
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Problem scraping fails ~
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- Ensure uv is installed: https://docs.astral.sh/uv/
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- Check internet connectivity
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- Verify contest and problem IDs are correct
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- Run |:checkhealth| cp for detailed diagnostics
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Compilation errors ~
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- Check C++ version compatibility with contest requirements
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- Verify compiler flags in configuration
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- Ensure source file syntax is correct
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Template expansion not working ~
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- Install LuaSnip plugin for automatic snippet expansion
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- Check snippets configuration
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- Ensure file is empty when opening new problem
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For more help, report issues at: https://github.com/frozen/cp.nvim
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vim:tw=78:ts=8:ft=help:norl: |