easyStrings & Parsing
Program Route Canonicalizer
Convert a program title into a safe deterministic route slug.
Practice challengeCodeArena challenge library
12 challenges match your filters.
easyStrings & Parsing
Institution Slug Builder
Normalize an institution name for public URLs.
Practice challengemediumStrings & Parsing
Evidence Label Canonicalizer
Create stable labels for uploaded evidence categories.
Practice challengehardStrings & Parsing
Community Topic Slug
Normalize a community topic without duplicate separators.
Practice challengeeasyStrings & Parsing
Scholarship Name Matcher
Match scholarship names against ? and * search patterns.
Practice challengeeasyStrings & Parsing
Log Route Matcher
Match normalized request paths against a wildcard policy.
Practice challengemediumStrings & Parsing
Course Catalog Matcher
Evaluate a catalog title against a constrained wildcard query.
Practice challengehardStrings & Parsing
File Policy Matcher
Match a safe filename against a policy expression.
Practice challengeeasyStrings & Parsing
Essay Phrase Families
Group phrases that contain the same letters after case normalization.
Practice challengeeasyStrings & Parsing
Program Code Families
Group program codes that are anagrams under normalization.
Practice challengemediumStrings & Parsing
Interview Token Families
Cluster interview tokens by canonical character signature.
Practice challengehardStrings & Parsing
Domain Alias Families
Group alias labels with the same normalized letters.
Practice challenge