[4,16] (for a1=4, it is impossible to find another element aj such that their sum is a power of two), [1,3,2,8,8,8] (for a3=2, it is impossible to find another element aj such that their sum is a power of two). You are given a sequence a1,a2,…,an. What is the m...
,ana1,a2,…,an is called good if, for each element aiai, there exists an element ajaj (i≠ji≠j) such that ai+ajai+aj is a power of two (that is, 2d2d for some non-negative integer dd). For example, the following sequences are good: [5,3,11][5,3,11] (for example, for...
[16][16] (for a1=16a1=16, it is impossible to find another element ajaj such that their sum is a power of two), [4,16][4,16] (for a1=4a1=4, it is impossible to find another element ajaj such that their sum is a power of two), [1,3,2,8,8,8][1,3,2,8,8,8] (fo...
(当其他人在身边时,某些大脑区域的活动会发生变化)”讲志趣相投的朋友在身边,你的某些大脑区域的活动会发生变化,该空应该承接上文讲发生变化后会产生什么样的结果,才能引出下文“You can use the power of social relationships to gain healthier habits — and motivate others to do the same. (你可以利用...
C The power of modern electronic media-the net, mobile phones and video games to capture the attention of the human mind particularly the young mind and then distract it, has lately become a subject of concern. We are, say the worriers, losing the ability to apply ourselves properly to a...
2005 Text 2 第一段 ①Do you remember all those years when scientists argued that smoking would kill us but the doubters insisted that we didn’t know for sure?②That the evidence was inconclusive, the science uncertain?③That the antismoking lobby was out to destroy our way of life and th...
You cannot think your way out of pain. You cannot predict it, or avoid it, or pretend you don’t feel it. Doing so is living a fraction of the life you were meant to, and it will make you a fraction of t...
Best on a Budget: Anker PowerDrive 2 There are hundreds, if not thousands, of cheap USB car chargers out there that all do much the same thing for about the same price. In this range, I look for a few different things: at least two ports that can quickly charge phones and tablets,...
根据第三段Soft,sincere and encouraging words from friends can give you strength in hard times.They can act as the light of hope in your time of darkness.They can make you smile and help you forget your worries.在困难的时候,朋友温柔、真诚和鼓励的话可以给你力量。他们可以作为希望之光在你们...
2. 解释:1)固定短语:use sth to do sth,意思是“用某物去做某事”.2)use the power of the workstation to present information,意思是“用工作站的威力去显示信息”.3)the workstaion“工作站”应该是电脑的术语,应该是指有服务器的一组电脑.而present在此句中为及物动词,意思是“显示/展现/表示”. ...