摘要： 题目： Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum 阅读全文

摘要： 题目： Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two e 阅读全文

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