Today YoussefObama's technical team, CEO, Mangement office, HR, Markteng Agency, SAlEs TEAMS are all celebrating and having fun because of what youssef obama has achieved over this year!!!!

We are proud to announce that YoussefObama posted educational content and blogs in all major scientific fields ( chimistry, biologie, fiziks and mathimatics) and not only this, he has linked them with compititve programeng so thank you codfrcs community for your continos support! 3> 3> 3> >3

Again thank you codfrcs community!!!!!!!!!!!!!!!

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Knuth is a very well experienced chemist 100% confrimed!!!

Knuth's DP optimization is based on a well knowed famos chemistry concept called "Ekilibrum".

$$$opt(i, j-1)$$$ should shift backward just the same as equilibrium when the products are reduced.

$$$opt(i+1, j)$$$ should shift forward just the same as equilibrium when the reactants are reduced.

Can you imagine how smart was he !!!!!!!!!!!!!

A chemist and computer solver and family holder at the same time!!!!

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Sigmant-trees is typically draw upside down.

For some reasons 90% of smart piple prefer upside down sigmant-tree but for example the smartest codfrcs user sword060 prefers sideway sigmant tree. For me YoussefObama, i loves regilar sigmant-tree.

What about you? Which type of sigmant-tree are you loves?

Regilar Sigmant-Tree

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Sideway Sigmant-Tree

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Upside Down Sigmant-Tree

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Could you solve this math proplem????

90% of smart piple kan't solve these.

find two integres such that:

• Their difference is $$$0$$$.

• Their product is $$$1$$$.

WE ARE removal cheaters FROM codfrcs!!!!

https://www.youtube.com/watch?v=6ACSJUjhvCw

CHEATERSS KICK FROM LIFE!!!

CHEATING NOT ALLOWED

DONT CHEAT OR BAN FROM LIFE

STTOOOOOOOOOOOOOOOOOPPPPPPPPP!!!!!!!!!!!!!

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LGM egyptian absent is because of time rounds!!!!

Yes yes yes!??!??!!!

Codfrcs should make rounds 15:35 GMT instead of 14:35 !!!!!

Egyptians have schools

Schools end at 3 PM (13:00 GMT)

Schools are away from home

Students go home

Students take time

Students get home 4 PM (14:00 GMT)

Students dont have eat time.

Students join codfrcs without eat

Students dont do good

Students dont LGM

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helLo codfrCs,

I WanTs to knOw ALL speciEs of sigmaNt trEe

ALl liviNg speciEs includiNg planTs, animaLs, birDs, microbEs and alSo sigmant trees are namEd bionomiaLy.

The scientific name of the tiger is presented as Panthera tigris. ‘Panthera’ represents the genus and ‘Tigris’ represents a particular species or specific epithet.

The scientific name of headphones sigmant tree are Sigmant-tree beats. ‘Sigmant-tree’ represents the genus and ‘beats’ represents a particular species.

The scientific name of humans is presented as Homo sapiens. ‘Homo’ represents the genus and ‘sapiens’ represents a particular species.

The first word are capitalized is the genus and the second words species.

So what are ALL speciEs for Sigmant-tree to can get the binomIal coefficient of sigmant treEs???!!!!!

UPD: I knowing this

1. Sigmant-tree beats

2. Sigmant-tree persistanta

3. Sigmant-tree implicita

4. Sigmant-tree lazy

5. Sigmant-tree lazy-implicita

6. Sigmant-tree historia

How i become level 1000 in codfrcs.

I have HTML and good kemistry gredz but I cant become level 1000 in codfrcs for always a year

I have to before level 1000 unlok level 969 but dat is very very hard.

I think da problem is my fiziks gredz how do to improve them and get level 1000

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Crizey peple think

dat 0^0 = 1

0^0 is alwez 0!

0

I am writing this post to thank Al-Khwarizmi_Fan the one who inspired me to start CP!

I draw his picture to honor him <3

How did people solve this problem based on the fact that

max(a_1, a_2, ..., a_n) — min(a_1, a_2, ..., a_n) = x where a_1 + a_2 + ... + a_n = x^2

how is this correct?

I t h i n k t h a t d i v 2 s a r e u s e l e s s, problems are easy and very s t a n d a r d. Fs are solved by 40+ p a r t i c i p a n t s o f f i c i a l l y i m a g i n e!!!

Global rounds and div1 + div2 rounds a r e b e t t e r, they h a v e i n t e r e s t i n g G and H

Hi Codforcs,

I wonder when Educational Codeforces Round (Rated for Div. 1) are going to be introduced.

There's a lot of such rounds:

https://mirror.codeforces.com/contest/1156

https://mirror.codeforces.com/contest/1716

I guess such rounds should be rated for div. 1 as well

Thanks!

It has been long time since I posted my last educative blog so I think it's time for a new one.

To unlock the spoiler, kindly dm me.

I think the higher your rating is, the more black characters you should have in your username. For example:

Master: 1 black characters

International Master: 2 black characters

Grandmaster & International Grandmaster: 3 black characters

Legendary Grandmaster: Your color is black

Which IDE do you prefer and think is better for cp?

Visual Studio Code

Codeblocks

Clion

CP Editor

VIM

Sublime

Codeforces Custom Invocation

How to group oranges together

How to solve Traveling Salesman Problem in O(logV):

Ingredients: 1 stick (4 ounces) unsalted butter

6 ounces bittersweet chocolate, preferably Valrhona

2 eggs

2 egg yolks

1/4 cup sugar

Pinch of salt

2 tablespoons all-purpose flour

Steps:

1- Preheat the oven to 450°. Butter and lightly flour four 6-ounce ramekins. Tap out the excess flour. Set the ramekins on a baking sheet.

2- In a double boiler, over simmering water, melt the butter with the chocolate. In a medium bowl, beat the eggs with the egg yolks, sugar and salt at high speed until thickened and pale.

3- Whisk the chocolate until smooth. Quickly fold it into the egg mixture along with the flour. Spoon the batter into the prepared ramekins and bake for 12 minutes, or until the sides of the cakes are firm but the centers are soft. Let the cakes cool in the ramekins for 1 minute, then cover each with an inverted dessert plate. Carefully turn each one over, let stand for 10 seconds and then unmold. Serve immediately.

Thank me later!

The IOI 2022 selection for Egypt has recently ended. Here are the four participants:

Yousef_Salama (Kindergarten, 12 attempts left)

mohammedehab2002 (1st Grade, 11 attempts left)

TripleM5da (2nd Grade, 10 attempts left)

mahmoudbadawy (2nd Grade, 10 attempts left)

They will participate in IOI 2022. Wish them good luck & Sir Please support Egypt!