摘要： 题目： Follow up for "Search in Rotated Sorted Array":What if duplicates are allowed? Would this affect the run-time complexity? How and why? Write a fun 阅读全文

摘要： 题目： Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a targe 阅读全文

摘要： 题目： Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the 阅读全文

摘要： 题目： 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 transac 阅读全文

摘要： 题目： Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements. For example, 阅读全文

摘要： 题目： Given an index k, return the kth row of the Pascal's triangle. For example, given k = 3,Return [1,3,3,1]. 思路大概是一步一步从后往前算出每行的各个元素。 阅读全文

摘要： 题目： Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra spac 阅读全文

摘要： 题目： Rotate an array of n elements to the right by k steps. For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4]. 阅读全文

摘要： 题目：Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input would have 阅读全文

摘要： 题目：Given an array and a value, remove all instances of that value in place and return the new length. Do not allocate extra space for another array, y 阅读全文