‘N-th Tribonacci Number (Easy)` 📌 Problem https://leetcode.com/problems/n-th-tribonacci-number/> 📌 Answer class Solution { public int tribonacci(int n) { if (n == 0) ...

‘All Possible Full Binary Trees(Medium)` 📌 Problem https://leetcode.com/problems/all-possible-full-binary-trees/ 📌 Answer /** * Definition for a binary tree node. * public class TreeNode { ...

‘Power of Two (Easy)` 📌 Problem https://leetcode.com/problems/power-of-two/ 📌 Answer class Solution { public boolean isPowerOfTwo(int n) { if (n == 1) return true; if (n ==...

‘Fibonacci Number (Easy)` 📌 Problem https://leetcode.com/problems/fibonacci-number/ 📌 Answer class Solution { public int fib(int n) { if (n == 0) return 0; if (n == 1) retu...

‘Sort List (Medium)` 📌 Problem https://leetcode.com/problems/sort-list/ 📌 Answer /** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next; * ...