题目Merge two sorted linked lists and return it as a new list. The new l
2019-04-09
121-Best Time to Buy and Sell Stock
题目Say you have an array for which the ith element is the price of a gi
2019-04-09
538-Convert BST to Greater Tree
题目Given a Binary Search Tree (BST), convert it to a Greater Tree such
2019-04-09
169-Majority Element
题目Given an array of size n, find the majority element. The majority el
2019-04-09
448-Find All Numbers Disappeared in an Array
题目Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), s
2019-04-08
206-Reverse Linked List
题目Reverse a singly linked list.
Example:
Input: 1->2->3->4-&g
2019-04-08
283-Move Zeroes
题目Given an array nums, write a function to move all 0’s to the end of
2019-04-08
226-Invert Binary Tree
题目Invert a binary tree.
Example:
Input:
4
/ \
2 7
/ \
2019-04-08
136-Single Number
题目Given a non-empty array of integers, every element appears twice exc
2019-04-07
104-Maximum Depth of Binary Tree
题目Given a binary tree, find its maximum depth.
The maximum depth is th
2019-04-07
617-Merge Two Binary Trees
题目Given two binary trees and imagine that when you put one of them to
2019-04-07
461-Hamming Distance
题目The Hamming distance between two integers is the number of positions
2019-04-07