# kth-competitive-programming/kactl

KTH Algorithm Competition Template Library (... eller KTHs AC-tillverkande lapp)

Repository: https://github.com/kth-competitive-programming/kactl
Canonical: https://ross.abutalabs.com/products/kactl
Language: C++
License Family: other
Topics: algorithm, contest, cpp, data-structures, competitive-programming, notebook, cc0
Last push: 2026-08-05T17:14:53+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 96, release rhythm 35, longevity 100
- inputs: {"age_days": 3384, "days_push": 28, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3468, forks 980 (observed 2026-08-28T04:08:05.861174+00:00)

## What it is
KACTL is KTH's ICPC team reference document: 25 pages of well-tested, copy-pasteable C++ algorithm and data structure implementations compiled into a printable PDF. The repository hosts the raw source code and LaTeX files so teams can customize and rebuild their own version.

## Use cases
- prepare a printed algorithm notebook for ICPC contests
- find tested C++ implementations of algorithms like FFT or suffix arrays
- customize a personal team reference document for programming competitions
- study well-tested competitive programming algorithm code
- verify algorithm implementations against stress tests

## When to choose
- you compete in ICPC-style contests where printed notes are allowed
- you want short, fast, well-tested C++ algorithm snippets
- you need a customizable LaTeX-based team notebook

## When to avoid
- you need a general-purpose production algorithm library
- you want overly generic or feature-rich data structures
- you need algorithms outside the contest-relevant subset, like general weighted matching

## Facets
- artifact type: learning-resource
- maturity: active
- function: developer-tools, documentation
- domain: education
- platform: cpp, cross-platform
- tags: competitive-programming, icpc, algorithm-library, reference-notebook, copy-paste-code, latex, data-structures, algorithms

## Member repositories
- kth-competitive-programming/kactl (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:05.861174+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:36:40.329231+00:00, confidence not recorded.
  - readme: https://github.com/kth-competitive-programming/kactl (fetched 2026-08-28T04:08:05.861174+00:00, sha 11651c2aac4f)
- Data as of 2026-08-30T08:39:29.467469+00:00.