Merge pull request #11 from iamAntimPal/Leetcode-75

Leetcode 75

Author: iamAntimPal

Solution/1137. N-th Tribonacci Number/1137. N-th Tribonacci Number.py

@@ -0,0 +1,6 @@
+class Solution:
+    def tribonacci(self, n: int) -> int:
+        a, b, c = 0, 1, 1
+        for _ in range(n):
+            a, b, c = b, c, a + b + c
+        return a