摘要： 题目描述： Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array. For example,Given nums = [ 阅读全文

摘要： 题目描述： There are n bulbs that are initially off. You first turn on all the bulbs. Then, you turn off every second bulb. On the third round, you toggle 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