hackerrank Day15: Linked List 1#include <iostream>2#include <cstddef>3usingnamespacestd;4classNode5{6public:7intdata;8Node *next;9Node(intd){10data=d;11next=NULL;12}13};14classSolution{15public:16Node* insert(Node *head,intdata)17{18Node *temp =newNode(data);19if(head ==NULL){20...
Linked List Insert a node at the head of a linked list InsertANodeAtHeadOfAList.java Linked List Insert a Node at the Tail of a Linked List InsertANodeAtTheTailOfALinkedList.java Linked List Insert a node at a specific position in a linked list InsertANodeAtASpecificPositionInALinkedList...
9 Recursion 30 Solution.java 10 Binary Numbers 30 Solution.java 11 2D Arrays 30 Solution.java 12 Inheritance 30 Solution.java 13 Abstract Classes 30 Solution.java 14 Scope 30 Solution.java 15 Linked List 30 Solution.java 16 Exceptions - String to Integer 30 Solution.java 17 More Exceptions 30...
Introduction Python: Division 10 Easy Solution.py Introduction Loops 10 Easy Solution.py Introduction Write a function 10 Medium Solution.py Introduction Print Function 20 Easy Solution.py Basic Data Types List Comprehensions 10 Easy Solution.py Basic Data Types Find the Runner-Up Score! 10 Easy So...
问题的链接在这里：https://www.hackerrank.com/challenges/print-the-elements-of-a-linked-list/...
进阶:链表可以迭代或递归地反转.你能否两个都实现一遍? 非递归代码: class Solution { public ListNode reverseList(ListNode head) { if(head == null) return null; ListNode pre = null, nex = null; while(head != null){ nex = head.next; head.next = pre; pre = head; h...
It's unlikely that an ad-hoc solution can be developed during an interview and two algorithms to look out for in the candidate’s solution are Graham's scan and Jarvis's march. Questions like these allow a recruiter or hiring manager to gauge mathematical knowledge — in this case, ...
Tony's Log HackerRank - "Sam and sub" Brutal-force solution is not hard to think about. But linear space input usually indicates O(n) DP solution. State design: dp[i]: total sum until index i; and then you need some number manipulation to figure out the equation....
12 Inheritance 30 Solution.java 13 Abstract Classes 30 Solution.java 14 Scope 30 Solution.java 15 Linked List 30 Solution.java 16 Exceptions - String to Integer 30 Solution.java 17 More Exceptions 30 Solution.java 18 Queues and Stacks 30 Solution.java 19 Interfaces 30 Solution.java 20 Sorting...
Print the Elements of a Linked List C++ O(n) O(1) Easy 5 Reverse a Linked List Java O(n) O(1) Easy 5 Compare Two Linked Lists C++ O(n) O(1) Easy 5 Delete a node C++ O(n) O(1) Easy 5 Trees#TitleSolutionTimeSpaceDifficultyPointsNote Tree: Preorder Traversal C++ O(n)...