Bad times make a good man. 艰难困苦出能人. Bad times make a good man, and hard times create strong men, but sometimes strong men did not bring good times. There is an argument that hard times require a strong man, that humans need leaders of confidence and…

Soon is not as good as now. 别谈未来,现在就行动. From Seth Godin. I always told myself that I should finish what I should do as soon as possible, but the ending might be always the same: The things were finished just before the deadlines with poor quality. An…

Life has no limitations, except the ones you make. 生命无限,除非你自我设限. From Les Brown. There would be no limitation if we can set the right goals and go all out for them. Right goals? Yes, frankly speaking, I want to single out that setting right or suitab…

Pleasure in the job puts perfection in the work. 乐于工作才能有完美表现. From Aristole. Do you want promotion? Do you want to get some raise in paycheck? If you want, you should improve your performace in your work, make it perfect, or at least put it at a leve…

And if you really want to see what people are, all you have to do is to look. 想真正了解他人,只需要用心看. From Wonder. At least once in our life someone would do something that make us say: Why did they do that? How could they do that? Why did they make such stu…

I don't know anything with certainty, but seeing the stars makes me dream. 我不知道世间有什么事是确定不变的,但只要一看到星空,我就会开始做梦. From Loving Vincent. By comparison with uncertainty, I like certainty better, but I know life is always changing, the world is always changi…

Empty your cup so that it may be filled. 清空杯子,方能再次装满. From Bruce Lee. We can't learn anything new if we already feel that we know. Please stay humble, please open ourselves to new ideas, and be willing to change our preconceptions. But it is difficul…

Even if you are on the right track, you will get run over if you just sit there. 即使你处于正确的轨道上,但如果你只是坐在原地,也会被别人碾过去. From Will Rogers. I remember I have maken some comments about this topic before, but I couldn't recall the exact date. That doesn't matt…

No safe wading in an unknown water. 未知水深浅,涉水有危险. Is this the theory that has been the guideline for the China's reformation: Crossing the river by feeling for the stones. There is surely no solid answer about whether it is safe when wading in an unkn…

Happiness is an inside job. 自内寻找,才能找到幸福. From William Arthur Ward. Nobody wants to suffer, and we all want to live a happy life. We are eager to be happy and we are constantly striving to pursue happiness. But in the process of cultivating happiness,…

摘要:Seclists.Org: 微信支付SDK存在XXE漏洞:WordPress 4.9.6存在文件删除漏洞:linux中常用的文件打包/解包与压缩/解压缩命令总结… 安全播报 Seclists.Org: 微信支付SDK存在XXE漏洞 为了商家可以接受异步支付的结果,微信无意中在Java版本的SDK中造成了XXE漏洞.通过利用该漏洞,攻击者可以构造恶意的XML格式的CallBack回调数据窃取商家服务器上的信息,而从这些信息中,攻击者可能获取到十分关键的MD5安全密钥从而实现无需付款即购买商品…

Winning isn't everything, but wanting it is. 胜利并不能代表一切,但求胜心可以. From Arnold Palmer. Compared to this quote, I believe that the quote from Vince Lombardi would be more famous, it goes as following: Winning isn't everything, it is the only thing. But is…

Make each day your masterpiece. 让生命中的每一天都成为杰作. From John Wooden. Try to focus on what we are doing right now and try the best of our abilities to make the results as perfect as possible. And we must recogize that nothing can be done about what had ha…

People love what other people are passionate about. 人总是会爱上别人倾注热情的事物. From La La Land. This quote has reminded me something I had experienced in job interview. As a delegator of the employer, I have asked the interviewees some questions about what are…

It is during our darkest moments that we must focus to see the light. 越是在艰难的时候就越要着眼于光明. From Aristole Onassis. When we feel the darkness presses in our life, we should trust ourselves to find the light, because it is during the darkest moments that w…

Change in all things is sweet. 有改变就会有美好. From Aristole. Change is always good, but embracing change may be no fun. Everyone of us likes staying in his or her comfort zone. After all, the comfort zone stirs up deep feelings of calm, relaxation and sec…

传送门 首先(想了很久之后)注意到一个性质:同一条边有多种颜色的话保留3种就可以了,这是因为假如最优解要求当前位置与相邻两条边都不相同,那么只要有3条边,就肯定可以满足这一点. 完事就做一个nlogn*3^4的倍增dp就行了……实际肯定是跑不满的(而且cc机子快). #include<cstdio> #include<cstring> #include<algorithm> #define MN 510000 using namespace std; ],_F[MN][…

传送门 好久没写题解了,就过来水两篇. 对于每一个人,考虑一个序列$A$,$A_I$表示当k取值为 i 时的答案. 如果说有两个人,我们可以把$(A+B)^k$二项式展开,这样就发现把两个人合并起来的操作就是一次卷积,直接NTT就可以了. 同类人有多个,直接暴力肯定是不行的.快速幂的话不知道会不会T,我是用了多项式取ln和exp(拉板子). #include<cmath> #include<cstdio> #include<cstring> #include<al…

Health and cheerfulness naturally beget each other. 安康喜乐,相生相成. From Joseph Addison. Good health is always one of the best blessings we can get in our life. But how to keep healthy? It is said that cheerfulness is the best promoter of health and is as…

Love is the beauty of the soul. 爱是灵魂之美. From Saint Augustine. The complete version of this quote goes as following: Since love grows within you, so beauty grows, for love is the beauty of the soul. It may be not about romantic love, in my mind, it is…

Don't criticize what you can't understand. 不懂的,不要随意批判. From Bob Dylan. Don't criticize what you can't understand, because you never walked in that man's shoes. Don't point your finger and criticize, because you have three fingers pointing right back…

Do one thing at a time, and do well. 一次只做一件事,并且要做到最好. Why is it that about 25% to 50% of people have ever reported that they felt overwhelmed or burned out at work? According to my own experience, it is not just the number of hours we are working, bu…

Fortune favors the bold. 勇者天佑. It has been increasingly apparent that courage is the main quality we need to start our own business, it can't make one rich being an ordinary employee. Every day, every moment, millions of people dream of starting a bu…

Make hay while the sun shines. 勿失良机. Last night the toothache woke me up and it was very difficult for me to get asleep again. I felt very depressed then, living a poor life, having no money to buy a house or just rent a big one for my lover who has…

A good beginning is half done. 良好的开端是成功的一半. We can't finish anything if we don't start, sometimes getting started might be the hardest part of the whole process. Get a good start on a project and the rest of it may fall into their own places naturall…

Love is blind, hard to find, difficult to get, and impossible to forget. 爱,很盲目,很难找,很难得,很难忘. It is almost impossible to find love, sincere love if we don't know ourselves, because we may not know who is our Mr. Right among those people me meet in our…

One man's fault is another man's lesson. 前车之覆,后车之鉴. We make mistakes every day, large or small, failures or faux pas. But failure and mistakes still don't feel like an awesome learing opportunity. I know it is my shortcomings that make me unique and…

The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it. 世界如其所示,那些无足轻重的人,那些听任自己变得无足轻重的人,在这个世界上没有位置. But how to be an important one, or just one who would be useful to the world? Someone has told me th…

Losing all hope was freedom. 彻底绝望就是真正的自由. Losing all the hopes, and we are free to challenge everything. It would be better to stop dreaming unrealistic dreams and focus on things we are doing now. Sometimes, we must know some of our dreams or goals…

It is only when you are pursued that you become swift. 唯有在被追赶的时候,你才能真正地奔跑. It is so bad a feeling when there is no clear goal. Sometimes I often find nothing to do but I know there are so many things need to be done. So, try to list every step that l…