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AcWing is an Online Judge.In a contest,the prize for the first three users is 10000,5000 and 2000 yuan(RMB).But all of the three problems are previously existed.jiangly cursed the contest when he knew,and was banned by AcWing.What do you think of it?Is jiangly wrong,or is that a trash Platform?
Discuss in Chinese here.
Monotile:Congruent plane figures of a single type that covers an infinite geometric plane without gaps or overlaps.
This figure was called 'eistein' until it was discovered.
It is important to notice that flipping is used.In the diagram,the dark blue blocks are the result of flipping blocks of others. Mathematicians have proven that there is no aperiodic monotile if only translations are allowed and no flipping is allowed.The only question that remains is whether such a monotile exists if no flipping is allowed, but translations and rotations are allowed.
Read the article here.
Reference:here
Hello Codeforces!
Today I had a problem with what my teacher said in school.
Our politics teacher, Mrs. Cai, told us something in class about the 'right' way to study for the Junior School Academic Examination that made us doubt.
She started telling us to give up all our hobbies: 'If anything other than studying takes up more than half an hour a day, you must give it up right away! There is nothing more important than the Exam.'She even said,'You have to give up even if you can't!Also,'You should have given it up when you were in Grade 6.’
Someone learnt to play the piano, and it usually took hours to practise, he learnt for a long time and really loved it.Mrs. Cai replied,'If you want to be Ronald, let you go!Do whatever you want!But you have to give up any hobby to waste your time studying as long as you're going to take the Exam.
If we do as what she said:
I take part in Codeforces contest for 2 hours.Give it up!
I learn linear alegebra for 3 hours.Give it up!!
My friend plays soccer for an hour.Give it up!!!
Another friend dances for 1.5 hours.Give it up!!!!
What a ridiculous talk!
There are counter-Examples everywhere! It's even hard to find a good student who doesn't have a hobby!As I know, every good student has a hobby!If you spend all your time studying and revising, you must be either stupid or mad! Everyone needs to relax, especially teenagers like us who are tired from studying!
Also,according to the Double-Reduction Policy in China,the main idea is to learn something more useful and take up your own hobby,instead of studying for the Exam.Mrs.Cai’s opinion is probably on the opposite side which tell us only study for the Exam!
We really don't disagree with her attitude to hobbies, so I decided to write this post to get some help: please tell us your answer to some of the following questions:
- What do you think of Mrs. Cai's talk?
- How can we strike a balance between study and hobby?
- What is the popular idea of teenagers' hobbies in your province (for Chinese) or your country (for foreigners)?
- What should we say to persuade Mrs. Cai?
Thank you for your help!
Disclaimer:
No personal attacks on anyone,I love my school and teachers,We just disagree with Mrs. Cai's opinion and would like to ask for your help.
Thank:
Thank you Mrs.Cai for telling us your opinion,thank you my classmates for supporting me,thank you DeepL for translating and helping me to write,and thank you all for reading and writing comments to help!
Is there any way?I am too noob so I don't want this awful account.THANKS.
Please,MikeMirzayanov.
Tomorrow is DEC25 which is the Halloween for coders!
Happy Halloween!
Note:DEC for December and Decimal,OCT for October and Octal.
Because he never counterattacked,and won 9 battles out of 20.
rt,i only can see me's talks.how i can see you's?where it is?very thak you.i write 3 time!plese comment!thank!
