Amazing challenge by Chef

CodeChefOpen on judge ↗

It is Math-e-Codia time and Chef has come up with an amazing challenge for all participants. Let $F(i)$ be the number of ways in which a stack can be filled with $2*i$ digits were $i$ of them are $0's$ and remaining are $1's$. Also at any moment the number of $0's$ in the stack should be greater than or equal to the number of $1's$ when counted from the bottom. Chef has challenged you with

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