GOODSEQ

CodeChefOpen on judge ↗

There are people who want to read a series of books written by Sam. However, Sam made sure that any reader must clear some challenge after reading a book so that they can read the next one. Readers, after reading the first book are stuck with the challenge of finding the number of "good sequences" of length $N$. Can you help? A "good sequence" is a sequence with the following characteristics • T

HINT LADDERno hints yet

L1 Observation

L2 Technique

L3 Approach

L4 Pseudo-code

🔒

L5 Full solution

L5 unlocks only if you insist twice

solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI