#1335Easy· asked at 1 company
N-th Tribonacci Number
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What we know
Example 1
Input: n = 4 Output: 4
T3 = 0 + 1 + 1 = 2, T4 = 1 + 1 + 2 = 4.
Example 2
Input: n = 25 Output: 1389537
Constraints
- •
0 <= n <= 37 - •
The answer is guaranteed to fit within a 32-bit integer.