About This Pattern
Master the 1D DP pattern by practicing these problems organized by difficulty.Focus on the Key Signals - these are the indicators that tell you when to use this pattern.
Easy (1)
N-th Tribonacci Number
The Tribonacci sequence is defined as T(n) = T(n-1) + T(n-2) + T(n-3). Return T(n).
Key Signals:
Recurrence relationBase casesConstant space option