2d array in c language

[spiral jungle]

i didnt get the 2 loops here its just swapping rows and colums but im having hard times understanding the loops and especially second one for(j=0;j<i;j++)

[thick field]

Those for loops look sussy

[spiral jungle]

i had to trace the program 4 times

so i can understand

[thick field]

They're doing nothing

[spiral jungle]

💀

[thick field]

They're probably ignored by the compiler

[spiral jungle]

simply theyre swaping aroun the diagonal

[spiral jungle]

NO

[thick field]

Man

J is initialized into the for loop scope

It isn't used inside it

It just doesn't do anything

Oh no

You right

Lmao

[spiral jungle]

YEAH

its just matrix

but not an equal dimensional one

[thick field]

What is hard to understand for u?

[spiral jungle]

but still works as a one

[spiral jungle]

i dont get the j<i

[thick field]

Anyway , they're idiot

[spiral jungle]

who

[thick field]

Because the could just do j = B

Instead of the for loop

[spiral jungle]

hm can u write it down wdym

[thick field]

j = B;

lmao

It's the same thing

[spiral jungle]

what is should be equal.to j=b

like

the matrix isnt equal

[thick field]

I have no time now

[spiral jungle]

rows and columns

[thick field]

Just reason

I have to study history for the tomorrow test

I'll explain you tomorrow

Basically they for loop make j equal to B

They can just replace it with j = B

Same for all the other for loops

[spiral jungle]

okay deallll

[thick field]

Did you read my messages,

Anyway

I don't know math so...

Yeah

[spiral jungle]

i did but i thought

[thick field]

I can't help you

[spiral jungle]

okay its okay

[thick field]

First year of hisghchool

[spiral jungle]

u took coding classes damn impressive

other than thatttt

im literally first 4 months of learning coding

and iour uni decided to start with c

[thick field]

I was wrong anyway

There's no ;

So the loop includes the loop below

And it makes sense

@spiral jungle

I was wrong , sorry

Anyway, scanf isn't a great idea

Buffer overflow is dangerous

Use fgets instead of scanf

Remember to convert it to int

First cast and then subtract

Oh wait

Nah

It's a bad idea

Just use scanf , screw security

I have a doubt

If you're using the same array

Deosn't it overwrite the other numbers?

[obtuse fjord]

because it only iterates through half the matrix and switch with the other half

it iterates through this part [\ of the matrix and switch it with ]

[spiral jungle]

GOT it

thank u

[thick field]

I'm trash

I can't even help