oneorzero

摘要： 题目描述： Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: The number of elements initialized in nums1 a 阅读全文

摘要： 题目描述： The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the tot 阅读全文

摘要： 题目描述： Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from the root node down to the fart 阅读全文

摘要： 题目描述： Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may 阅读全文

摘要： 题目描述： Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one trans 阅读全文

摘要： 题目描述： Given a non-empty array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear 阅读全文

摘要： 题目描述： Given a linked list, determine if it has a cycle in it. To represent a cycle in the given linked list, we use an integer pos which represents th 阅读全文

摘要： 题目描述： Given a linked list, return the node where the cycle begins. If there is no cycle, return null. To represent a cycle in the given linked list, w 阅读全文

摘要： 题目描述： Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and put. get(key) - G 阅读全文

摘要： 题目描述： Sort a linked list in O(n log n) time using constant space complexity. Example 1: Example 2: 代码： 阅读全文