EXTERNAL PRACTICE INDEX · V0
Practice by topic, with honest attribution.
These links point to third-party judges and collections. ICPC University maps destinations—not copied statements, editorials, test data, or implied ownership. Topic and difficulty labels are guidance pending formal curriculum review.
Mapped Starter Set
A finishable sequence of attributed CSES tasks with course bands, topic labels, and local progress.
Open the starter set → CATEGORIZED · ALL COURSESCSES Problem Set
Structured categories spanning introductory algorithms through advanced graph and range-query practice.
Open at CSES ↗ RATED · ALL COURSESCodeforces Problemset
A large rated archive suited to targeted practice and timed virtual contests.
Open at Codeforces ↗ CONTEST ARCHIVE · ALL COURSESKattis Problems
Searchable contest problems with difficulty estimates and direct judge feedback.
Open at Kattis ↗ GUIDED · ALL COURSESUSACO Guide Problems
Problems attached to structured explanations and progressive topic modules.
Open at USACO Guide ↗ CONTESTS · ALL COURSESAtCoder
Frequent contests and unusually clear statements across a broad difficulty range.
Open at AtCoder ↗ COMMUNITY JUDGE · ALL COURSESDMOJ Problems
A broad archive with organizations, ratings, contests, and topic tags.
Open at DMOJ ↗ SPANISH · ALL COURSESomegaUp Problems
Spanish-first programming education and practice collections.
Open at omegaUp ↗ PORTUGUESE · COURSES I–IIbeecrowd Problems
A Portuguese-friendly judge with strong introductory coverage.
Open at beecrowd ↗ CLASSIC ARCHIVE · ALL COURSESSPOJ Classical
A long-running multilingual collection of classical judge problems.
Open at SPOJ ↗ VIRTUAL CONTESTS · ALL COURSESVirtual Judge
Build team sets across multiple online judges without reproducing problem content here.
Open at Virtual Judge ↗ CURATED · COURSES II–IVMethods to Solve
High-quality problems organized by algorithmic topic.
Open curated list ↗ OFFICIAL ARCHIVE · ADVANCEDICPC World Finals Problems
Official past World Finals problem sets for championship-level practice.
Open official archive ↗No mapped collection matches those filters. This is a visible coverage gap; try a broader topic or report a missing source.