- Construyendo Arbol
- ABB
- Viaje a la Capital
- Levels and Regions [Useful post]
- Cow School
- Lena and Queries
- Ciel the Commander
- Recurrent on a Tree
- Strings Balanceados
- Carrera
- QTREE Centroide como data structure
- Fito Begins in Fashion Centroide como data structure
- Can Bash Save the Day? Persistente
- Sherlock's bet to Moriarty Similar al primero pero con geometría ;)
- Santa Clauses and a Soccer Championship
- Suffix Array
- ?Hashing? Contest
- Passwords
- New Distinct Substrings
- LCS
- Transaction Certificates Pro tip: Build anti-hash test.
- Palindrome Counting