LeetCode Çözümleri – 1137. N-th Tribonacci Number

LeetCode içerisinde bulunan “N-th Tribonacci Number” sorusunun açıklaması ve çözümü. Bu soruda Tribonacci serisinin n. elemanını bulmanız isteniyor.

► LeetCode 1137. N-th Tribonacci Number: https://leetcode.com/problems/n-th-tribonacci-number/

► Problem açıklaması:

The Tribonacci sequence Tn is defined as follows:

T0 = 0, T1 = 1, T2 = 1, and Tn+3 = Tn + Tn+1 + Tn+2 for n >= 0.

Given n, return the value of Tn.

Example 1:

Input: n = 4

Output: 4

Explanation:

T_3 = 0 + 1 + 1 = 2

T_4 = 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, ie. answer lessEqual 2^31 – 1.

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