I - Prefix MEX Equation
problem — every listed problem · all sets
- internal id
- p-f905370f
- appearances
- kanpur-2025 (kanpur-2025)
- held
- not recorded yet
- solve online
- CodeChef id PREMXQ
- data
- problemsets/kanpur-2025.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.