Up and Down Sequences
problem — every listed problem · all sets
- internal id
- p-e3f2c43f
- appearances
- ecna-1995 (ecna-1995)
- held
- not recorded yet
- solve online
- ICPC Live Archive id 5388
- data
- problemsets/ecna-1995.yaml
St statement · D test data · IV/OV input/output validator · So solutions · P complete package — filled = held.